Membuat Aplikasi Java Form Login, Data Mahasiswa dan Perhitungan Nilai Mahasiswa NetBeans

Berhubung saya mendapatkan tugas UTS take a home dari kuliahan saya. Kali ini saya akan membuat aplikasi java sederhana form login, data mahasiswa dan perhitungan nilai mahasiswa menggunakan NetBeans. Aplikasi ini semuanya nyambung menjadi 1.

Aplikasi pada desain Jframe di aplikasi ini ada Label, TextField, TextArea, PasswordField, CheckBox, RadioButton, ComboBox, Button, MenuBar, dan Panel.

Okelah, langsung saja ya?

Yang pertama saya membuat Form Login

Penjelasan Form Login
Disini saya membuat Form Login. dengan username : admin dan password : dikanurohim, jika password diisi dengan kata yang salah, maka pas di login akan keluar warning "username salah" begitupun sebaliknya. Jika berhasil login akan langsung ke Form Pembukaan.
Dan untuk jika di klik cancel akan ada 2 opsi lagi, yes / no.

Design Form Login

Component Form Login

Source Code Form Login

import javax.swing.JOptionPane;

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

/**
*
* @author user
*/
public class FormLogin extends javax.swing.JFrame {

/**
* Creates new form FormLogin
*/
public FormLogin() {
initComponents();
}

/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
TxtUsername = new javax.swing.JTextField();
BLogin = new javax.swing.JButton();
BCancel = new javax.swing.JButton();
TxtPassword = new javax.swing.JPasswordField();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel1.setFont(new java.awt.Font("Century Gothic", 1, 18)); // NOI18N
jLabel1.setText("Username");

jLabel2.setFont(new java.awt.Font("Century Gothic", 1, 18)); // NOI18N
jLabel2.setText("Password");

TxtUsername.setFont(new java.awt.Font("Century Gothic", 1, 14)); // NOI18N
TxtUsername.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
TxtUsernameActionPerformed(evt);
}
});

BLogin.setText("LOGIN");
BLogin.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BLoginActionPerformed(evt);
}
});

BCancel.setText("CANCEL");
BCancel.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BCancelActionPerformed(evt);
}
});

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel1)
.addComponent(jLabel2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(TxtUsername, javax.swing.GroupLayout.DEFAULT_SIZE, 190, Short.MAX_VALUE)
.addComponent(TxtPassword)))
.addGroup(layout.createSequentialGroup()
.addGap(76, 76, 76)
.addComponent(BLogin, javax.swing.GroupLayout.PREFERRED_SIZE, 85, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(BCancel, javax.swing.GroupLayout.PREFERRED_SIZE, 85, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1)
.addComponent(TxtUsername, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addComponent(TxtPassword, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(2, 2, 2))
.addComponent(jLabel2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(BLogin)
.addComponent(BCancel))
.addContainerGap(18, Short.MAX_VALUE))
);

pack();
}// </editor-fold>

private void TxtUsernameActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void BCancelActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
int y;
y=JOptionPane.showConfirmDialog(null,"Apakah kamu yakin?","question", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if(y==JOptionPane.YES_NO_OPTION)
{
System.exit(0);
}
}

private void BLoginActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
if (TxtUsername.getText().equals("admin")){
if (TxtPassword.getText().equals("dikanurohim")){
new Pembukaan().show();
this.dispose();
}else{
JOptionPane.showMessageDialog(rootPane, "password salah");
TxtPassword.setText("");
TxtPassword.requestFocus();
}
}else{
JOptionPane.showMessageDialog(rootPane, "username salah");
TxtUsername.setText("");
TxtPassword.setText("");
TxtUsername.requestFocus();
}
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(FormLogin.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(FormLogin.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(FormLogin.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(FormLogin.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new FormLogin().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton BCancel;
private javax.swing.JButton BLogin;
private javax.swing.JPasswordField TxtPassword;
private javax.swing.JTextField TxtUsername;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
// End of variables declaration
}

Hasil Form Login

Yang kedua Form Pembukaan

Penjelasan Form Pembukaan
Form ini hanya berisi MenuBar dan Label-label pemberitahuan. di Menubar terdapat File yang berisikan Form Data Mahasiswa dan Nilai Mahasiswa dan terdapat Exit yang jika di klik mempunyai 2 opti yes / no .

Design Form Pembukaan

Component Form Pembukaan

Source Code Form Pembukaan

import javax.swing.JOptionPane;

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

/**
*
* @author user
*/
public class Pembukaan extends javax.swing.JFrame {

/**
* Creates new form Opening
*/
public Pembukaan() {
initComponents();
}

/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem2 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
jLabel1.setText("Aplikasi ini terdiri dari :");

jLabel2.setText("1. Aplikasi Data Mahasiswa");

jLabel3.setText("2. Aplikasi Perhitungan Nilai Mahasiswa");

jMenu1.setText("File");

jMenuItem1.setText("Data Mahasiwa");
jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem1ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem1);

jMenuItem2.setText("Nilai Mahasiswa");
jMenuItem2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem2ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem2);

jMenuBar1.add(jMenu1);

jMenu2.setText("Exit");
jMenu2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jMenu2MouseClicked(evt);
}
});
jMenuBar1.add(jMenu2);

setJMenuBar(jMenuBar1);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(27, 27, 27)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3)
.addComponent(jLabel2)
.addComponent(jLabel1))
.addContainerGap(29, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(23, 23, 23)
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel3)
.addContainerGap(29, Short.MAX_VALUE))
);

pack();
}// </editor-fold>

private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
DataMahasiswa FP =new DataMahasiswa ();
FP.setLocationRelativeTo(FP);
FP.setVisible(true);
}

private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
NilaiMahasiswa FP =new NilaiMahasiswa ();
FP.setLocationRelativeTo(FP);
FP.setVisible(true);
}

private void jMenu2MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
int y;
y=JOptionPane.showConfirmDialog(null,"Apakah kamu yakin?","question", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if(y==JOptionPane.YES_NO_OPTION)
{
System.exit(0);
}
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Pembukaan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Pembukaan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Pembukaan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Pembukaan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Pembukaan().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
// End of variables declaration
}

Hasil Form Pembukaan

Yang ketiga Form Data Mahasiswa

Penjelasan Form Data Mahasiswa
Form Data Mahasiswa ini terdapat output jika di menekan tombol save akan muncul di outputnya, dan clear untuk menghapus semua fieldnya.

Design Form Data Mahasiswa

Component Form Data Mahasiswa

Source Code Form Data Mahasiswa

import javax.swing.ButtonGroup;
import javax.swing.JOptionPane;

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

/**
*
* @author user
*/
public class DataMahasiswa extends javax.swing.JFrame {
private final ButtonGroup gabung;

/**
* Creates new form DataMahasiswa
*/
public DataMahasiswa() {
initComponents();
gabung=new ButtonGroup();
gabung.add(btlaki);
gabung.add(btpr);
}

/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

buttonGroup1 = new javax.swing.ButtonGroup();
jLabel1 = new javax.swing.JLabel();
jPanel1 = new javax.swing.JPanel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jLabel5 = new javax.swing.JLabel();
jLabel6 = new javax.swing.JLabel();
jLabel7 = new javax.swing.JLabel();
jLabel8 = new javax.swing.JLabel();
txtnama = new javax.swing.JTextField();
btlaki = new javax.swing.JRadioButton();
btpr = new javax.swing.JRadioButton();
cbagama = new javax.swing.JComboBox();
jScrollPane1 = new javax.swing.JScrollPane();
txtalamat = new javax.swing.JTextArea();
txthobi = new javax.swing.JTextField();
txtemail = new javax.swing.JTextField();
txtnotelp = new javax.swing.JTextField();
BSave = new javax.swing.JButton();
BClear = new javax.swing.JButton();
jLabel9 = new javax.swing.JLabel();
jPanel2 = new javax.swing.JPanel();
jScrollPane2 = new javax.swing.JScrollPane();
output1 = new javax.swing.JTextArea();
jLabel10 = new javax.swing.JLabel();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem2 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel1.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
jLabel1.setText("Data Mahasiswa");

jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());

jLabel2.setText("Nama");

jLabel3.setText("Jenis Kelamin");

jLabel4.setText("Agama");

jLabel5.setText("Alamat");

jLabel6.setText("Hobi");

jLabel7.setText("Email");

jLabel8.setText("No Telepon");

txtnama.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txtnamaActionPerformed(evt);
}
});

btlaki.setText("Laki-Laki");

btpr.setText("Perempuan");

cbagama.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Islam", "Kristen", "Hindu", "Budha", "Konghuchu" }));

txtalamat.setColumns(20);
txtalamat.setRows(5);
jScrollPane1.setViewportView(txtalamat);

BSave.setText("Save");
BSave.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BSaveActionPerformed(evt);
}
});

BClear.setText("Clear");
BClear.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BClearActionPerformed(evt);
}
});

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel3)
.addComponent(jLabel4)
.addComponent(jLabel5)
.addComponent(jLabel6)
.addComponent(jLabel7)
.addComponent(jLabel8))
.addGap(35, 35, 35)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 281, Short.MAX_VALUE)
.addComponent(txthobi)
.addComponent(txtnama)
.addComponent(txtemail)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(cbagama, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(btlaki)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btpr)))
.addGap(0, 0, Short.MAX_VALUE))
.addComponent(txtnotelp)))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(BSave)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(BClear)))
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(txtnama, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(btlaki)
.addComponent(btpr))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel4)
.addComponent(cbagama, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel5)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txthobi, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel6))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txtemail, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel7))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txtnotelp, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel8))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(BSave)
.addComponent(BClear))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);

jLabel9.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
jLabel9.setText("Output");

jPanel2.setBorder(javax.swing.BorderFactory.createEtchedBorder());

output1.setColumns(20);
output1.setRows(5);
jScrollPane2.setViewportView(output1);

javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane2)
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 135, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE))
);

jLabel10.setText("Copyright @2014 | by Dika Nurohim");

jMenu1.setText("File");

jMenuItem1.setText("Data Mahasiswa");
jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem1ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem1);

jMenuItem2.setText("Nilai Mahasiswa");
jMenuItem2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem2ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem2);

jMenuBar1.add(jMenu1);

jMenu2.setText("Exit");
jMenu2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jMenu2MouseClicked(evt);
}
});
jMenuBar1.add(jMenu2);

setJMenuBar(jMenuBar1);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1)
.addComponent(jLabel9))
.addGap(0, 0, Short.MAX_VALUE))
.addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(jLabel10)))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel9)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel10))
);

pack();
}// </editor-fold>

private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void txtnamaActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jMenu2MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
int y;
y=JOptionPane.showConfirmDialog(null,"Apakah kamu yakin?","question", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if(y==JOptionPane.YES_NO_OPTION)
{
System.exit(0);
}
}

private void BSaveActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String JK, agama;
if (btlaki.isSelected())
{
JK = "Laki-laki";
}
else
{
JK="Perempuan";
}
agama = cbagama.getSelectedItem().toString();
output1.setText("Nama : " + txtnama.getText() + "\n" + "Jenis Kelamin : "+ JK + "\n" +"Agama : "+ agama +"\n" +"Alamat : " +txtalamat.getText()+"\n"
+ "Hobi : " +txthobi.getText() +"\n" +"Email : " + txtemail.getText() +"\n" + "No Telepon : " +txtnotelp.getText());

}

private void BClearActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
if (JOptionPane.showConfirmDialog
(this, "Anda Yakin Akan Menghapus Data Mahasiswa?",
"Hapus Mahasiwa", JOptionPane.OK_CANCEL_OPTION) ==
JOptionPane.CANCEL_OPTION) {
// batalkan aksi hapus
return;
}
txtnama.setText("");
txtalamat.setText("");
txthobi.setText("");
txtemail.setText("");
txtnotelp.setText("");
output1.setText("Nama : " + "\n" + "Jenis Kelamin : " + "\n" +"Agama : " + "\n" +"Alamat : " + "\n"
+ "Hobi : " + "\n" +"Email : " + "\n" + "No Telepon : ");
}

private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
NilaiMahasiswa FP =new NilaiMahasiswa ();
FP.setLocationRelativeTo(FP);
FP.setVisible(true);
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(DataMahasiswa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new DataMahasiswa().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton BClear;
private javax.swing.JButton BSave;
private javax.swing.JRadioButton btlaki;
private javax.swing.JRadioButton btpr;
private javax.swing.ButtonGroup buttonGroup1;
private javax.swing.JComboBox cbagama;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel10;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JLabel jLabel7;
private javax.swing.JLabel jLabel8;
private javax.swing.JLabel jLabel9;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTextArea output1;
private javax.swing.JTextArea txtalamat;
private javax.swing.JTextField txtemail;
private javax.swing.JTextField txthobi;
private javax.swing.JTextField txtnama;
private javax.swing.JTextField txtnotelp;
// End of variables declaration
}

Hasil Form Data Mahasiswa

Yang keempat Form Nilai Mahasiswa

Penjelasan Form Nilai Mahasiswa
Seperti Data Mahasiswa diatas, terdapat output jika kita mengklik hitung. dan terdapat checkbox yang jika tidak di klik tidak akan bisa menulis di textfieldmya.

Design Form Nilai Mahasiswa

Component Form Nilai Mahasiswa

Source Code Form Nilai Mahasiswa

import javax.swing.JOptionPane;

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

/**
*
* @author user
*/
public class NilaiMahasiswa extends javax.swing.JFrame {

/**
* Creates new form NilaiMahasiswa
*/
public NilaiMahasiswa() {
initComponents();
}

/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jLabel1 = new javax.swing.JLabel();
jPanel1 = new javax.swing.JPanel();
jLabel2 = new javax.swing.JLabel();
cuts = new javax.swing.JCheckBox();
cuas = new javax.swing.JCheckBox();
charian = new javax.swing.JCheckBox();
txtnama = new javax.swing.JTextField();
txtuts = new javax.swing.JTextField();
txtuas = new javax.swing.JTextField();
txtharian = new javax.swing.JTextField();
jPanel2 = new javax.swing.JPanel();
jLabel3 = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
output1 = new javax.swing.JTextArea();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem2 = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel1.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
jLabel1.setText("Perhitungan Nilai Mahasiswa");

jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());

jLabel2.setText("Nama Mahasiswa");

cuts.setText("Nilai UTS");
cuts.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cutsActionPerformed(evt);
}
});

cuas.setText("Nilai UAS");
cuas.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cuasActionPerformed(evt);
}
});

charian.setText("Nilai Harian");
charian.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
charianActionPerformed(evt);
}
});

txtuts.setEditable(false);

txtuas.setEditable(false);

txtharian.setEditable(false);

jPanel2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

jLabel3.setText("Data Nilai Mahasiswa");

output1.setColumns(20);
output1.setRows(5);
jScrollPane1.setViewportView(output1);

javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jLabel3)
.addGap(0, 0, Short.MAX_VALUE))
.addComponent(jScrollPane1))
.addContainerGap())
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);

jButton1.setText("Hitung");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});

jButton2.setText("Clear");

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(cuts)
.addComponent(cuas)
.addComponent(charian))
.addGap(55, 55, 55)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(txtnama, javax.swing.GroupLayout.PREFERRED_SIZE, 180, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(txtharian, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 90, Short.MAX_VALUE)
.addComponent(txtuas, javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(txtuts, javax.swing.GroupLayout.Alignment.LEADING))
.addGap(18, 18, 18)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
.addGap(0, 0, Short.MAX_VALUE)))
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(txtnama, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(cuts)
.addComponent(txtuts, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(cuas)
.addComponent(txtuas, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton1))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(charian)
.addComponent(txtharian, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);

jMenu1.setText("File");

jMenuItem1.setText("Data Mahasiwa");
jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem1ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem1);

jMenuItem2.setText("Nilai Mahasiswa");
jMenuItem2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem2ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem2);

jMenuBar1.add(jMenu1);

jMenu2.setText("Exit");
jMenu2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jMenu2MouseClicked(evt);
}
});
jMenuBar1.add(jMenu2);

setJMenuBar(jMenuBar1);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(11, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(32, Short.MAX_VALUE))
);

pack();
}// </editor-fold>

private void cutsActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
if (cuts.isSelected() == true) {
txtuts.setEditable(true);
} else {
txtuts.setEditable(false);
txtuts.setText("");
}
}

private void cuasActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
if (cuas.isSelected() == true) {
txtuas.setEditable(true);
} else {
txtuas.setEditable(false);
txtuas.setText("");
}
}

private void charianActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
if (charian.isSelected() == true) {
txtharian.setEditable(true);
} else {
txtharian.setEditable(false);
txtharian.setText("");
}
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
double uts = Integer.parseInt(txtuts.getText());
double uas =Integer.parseInt(txtuas.getText());
double harian=Integer.parseInt(txtharian.getText());

double hasil= (uts+uas+harian)/3;

if(hasil>81 && hasil <=100)
{
output1.setText("Nama Mahasiswa : "+txtnama.getText() + "\n" + "Nilai Rata - rata : " + hasil + "\n" + "Grate : A" + "\n" + "Hasil : LULUS" );

}
else if(hasil>75 && hasil <=81)
{
output1.setText("Nama Mahasiswa : "+txtnama.getText() + "\n" + "Nilai Rata - rata : " + hasil + "\n" + "Grate : B" + "\n" + "Hasil : LULUS" );

}
else if(hasil>60 && hasil <=75)
{
output1.setText("Nama Mahasiswa : "+txtnama.getText() + "\n" + "Nilai Rata - rata : " + hasil + "\n" + "Grate : C" + "\n" + "Hasil : LULUS" );
}
else if(hasil<60 )
{
output1.setText("Nama Mahasiswa : "+txtnama.getText() + "\n" + "Nilai Rata - rata : " + hasil + "\n" + "Grate : D" + "\n" + "Hasil : MENGULANG" );

}
}

private void jMenu2MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
int y;
y=JOptionPane.showConfirmDialog(null,"Apakah kamu yakin?","question", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if(y==JOptionPane.YES_NO_OPTION)
{
System.exit(0);
}
}

private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
DataMahasiswa FP =new DataMahasiswa ();
FP.setLocationRelativeTo(FP);
FP.setVisible(true);
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NilaiMahasiswa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NilaiMahasiswa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NilaiMahasiswa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NilaiMahasiswa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NilaiMahasiswa().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JCheckBox charian;
private javax.swing.JCheckBox cuas;
private javax.swing.JCheckBox cuts;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea output1;
private javax.swing.JTextField txtharian;
private javax.swing.JTextField txtnama;
private javax.swing.JTextField txtuas;
private javax.swing.JTextField txtuts;
// End of variables declaration
}

Hasil Form Nilai Mahasiswa