Tugas ke-3

import java.io.FileNotFoundException;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;

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

/*
* tugas4.java
*
* Created on 17 Apr 09, 17:39:24
*/

/**
*
* @author Any one
*/
public class tugas4 extends javax.swing.JFrame {
int a,b;
String car = ";";
/** Creates new form tugas4 */
public tugas4() {
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")
//
private void initComponents() {

jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
Arus = new javax.swing.JTextField();
Hambatan = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
Hasil = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jToolBar1 = new javax.swing.JToolBar();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel1.setText("Masukan Besar Arus");

jLabel2.setText("Masukan Besar Hambatan");

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

jLabel3.setText("Hasil Penghitungan");

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

jButton2.setText("Clear");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});

jToolBar1.setRollover(true);

jButton3.setText("Save");
jButton3.setFocusable(false);
jButton3.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
jButton3.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
jToolBar1.add(jButton3);

jButton4.setText("Load");
jButton4.setFocusable(false);
jButton4.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
jButton4.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});
jToolBar1.add(jButton4);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jButton1)
.addGap(42, 42, 42)
.addComponent(jButton2))
.addGroup(layout.createSequentialGroup()
.addGap(47, 47, 47)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1)
.addComponent(jLabel2)
.addComponent(jLabel3))
.addGap(45, 45, 45)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(Hasil, javax.swing.GroupLayout.DEFAULT_SIZE, 104, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(Arus)
.addComponent(Hambatan, javax.swing.GroupLayout.PREFERRED_SIZE, 67, javax.swing.GroupLayout.PREFERRED_SIZE)))))
.addContainerGap(80, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jToolBar1, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(300, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jToolBar1, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(45, 45, 45)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(Arus, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(35, 35, 35)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(Hambatan, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(52, 52, 52)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3)
.addComponent(Hasil, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(31, 31, 31)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton2)
.addComponent(jButton1))
.addContainerGap(35, Short.MAX_VALUE))
);

pack();
}//

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

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
Arus.setText("");
Hambatan.setText("");
Hasil.setText("");// TODO add your handling code here:
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
a = Integer.parseInt(Arus.getText());
b = Integer.parseInt(Hambatan.getText());
int hasil = a * b;
Hasil.setText(""+hasil); // TODO add your handling code here:
}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
java.io.File file = new java.io.File("Save.txt");
java.io.PrintWriter output = null;
try {
output = new java.io.PrintWriter(file);
} catch (FileNotFoundException ex) {
Logger.getLogger(tugas4.class.getName()).log(Level.SEVERE, null, ex);
}
output.print(Arus.getText()+car);
output.print(Hambatan.getText());
output.close();

//option pane
JOptionPane.showMessageDialog(null, "Saved Successfully","Success",JOptionPane.WARNING_MESSAGE); // TODO add your handling code here:
}

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
//event hand
int respon2 = JOptionPane.showConfirmDialog(null, "Are You Sure ?", "Tanya Dulu...", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);

java.io.File file = new java.io.File("Save.txt");
Scanner input = null;
try {
input = new Scanner(file);
} catch (FileNotFoundException ex) {
Logger.getLogger(tugas4.class.getName()).log(Level.SEVERE, null, ex);
}
input.useDelimiter(";");
while (input.hasNext()){
String m = input.next();
String p = input.next();
Arus.setText(m);
Hambatan.setText(p);
}
input.close();

// TODO add your handling code here:
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new tugas4().setVisible(true);
}
});
}

// Variables declaration - do not modify
private javax.swing.JTextField Arus;
private javax.swing.JTextField Hambatan;
private javax.swing.JLabel Hasil;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JToolBar jToolBar1;
// End of variables declaration

}