Membuat Calculator Menggunakna Java Swing

/*

* DesainKalkulator.java

*

* Created on 24 Mei 2012, 4:07

*/

 

package kalkulator;

 

/**

*

* @author  Witty

*/

public class DesainKalkulator extends javax.swing.JFrame {

double tot, nilai1, nilai2;

String a, b;

int pil;

private Object Int;

 

/** Creates new form DesainKalkulator */

public DesainKalkulator() {

initComponents();

a="";

}

 

/** 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.

*/

// <editor-fold defaultstate="collapsed" desc="Generated Code">

private void initComponents() {

 

jButton1 = new javax.swing.JButton();

jButton2 = new javax.swing.JButton();

jButton3 = new javax.swing.JButton();

jButton4 = new javax.swing.JButton();

jButton5 = new javax.swing.JButton();

jButton6 = new javax.swing.JButton();

jButton7 = new javax.swing.JButton();

jButton8 = new javax.swing.JButton();

jButton9 = new javax.swing.JButton();

jButton11 = new javax.swing.JButton();

jButton12 = new javax.swing.JButton();

jButton13 = new javax.swing.JButton();

jButton14 = new javax.swing.JButton();

jButton15 = new javax.swing.JButton();

jButton16 = new javax.swing.JButton();

jButton17 = new javax.swing.JButton();

jTextField1 = new javax.swing.JTextField();

jLabel1 = new javax.swing.JLabel();

jLabel2 = new javax.swing.JLabel();

 

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

setTitle("Kalkulator Sederhana (Siti Witty Ariyanti)");

setBackground(getBackground());

setResizable(false);

getContentPane().setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());

 

jButton1.setLabel("1");

jButton1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton1ActionPerformed(evt);

}

});

getContentPane().add(jButton1, new org.netbeans.lib.awtextra.AbsoluteConstraints(70, 130, -1, -1));

 

jButton2.setLabel("2");

jButton2.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton2ActionPerformed(evt);

}

});

getContentPane().add(jButton2, new org.netbeans.lib.awtextra.AbsoluteConstraints(120, 130, -1, -1));

 

jButton3.setLabel("3");

jButton3.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton3ActionPerformed(evt);

}

});

getContentPane().add(jButton3, new org.netbeans.lib.awtextra.AbsoluteConstraints(170, 130, -1, -1));

 

jButton4.setLabel("4");

jButton4.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton4ActionPerformed(evt);

}

});

getContentPane().add(jButton4, new org.netbeans.lib.awtextra.AbsoluteConstraints(70, 170, -1, -1));

 

jButton5.setLabel("5");

jButton5.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton5ActionPerformed(evt);

}

});

getContentPane().add(jButton5, new org.netbeans.lib.awtextra.AbsoluteConstraints(120, 170, -1, -1));

 

jButton6.setLabel("6");

jButton6.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton6ActionPerformed(evt);

}

});

getContentPane().add(jButton6, new org.netbeans.lib.awtextra.AbsoluteConstraints(170, 170, -1, -1));

 

jButton7.setLabel("7");

jButton7.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton7ActionPerformed(evt);

}

});

getContentPane().add(jButton7, new org.netbeans.lib.awtextra.AbsoluteConstraints(70, 210, -1, -1));

 

jButton8.setLabel("8");

jButton8.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton8ActionPerformed(evt);

}

});

getContentPane().add(jButton8, new org.netbeans.lib.awtextra.AbsoluteConstraints(120, 210, -1, -1));

 

jButton9.setLabel("9");

jButton9.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton9ActionPerformed(evt);

}

});

getContentPane().add(jButton9, new org.netbeans.lib.awtextra.AbsoluteConstraints(170, 210, -1, -1));

 

jButton11.setLabel("0");

jButton11.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton11ActionPerformed(evt);

}

});

getContentPane().add(jButton11, new org.netbeans.lib.awtextra.AbsoluteConstraints(70, 250, -1, -1));

 

jButton12.setLabel("Clear");

jButton12.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton12ActionPerformed(evt);

}

});

getContentPane().add(jButton12, new org.netbeans.lib.awtextra.AbsoluteConstraints(120, 250, 90, -1));

 

jButton13.setLabel("+");

jButton13.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton13ActionPerformed(evt);

}

});

getContentPane().add(jButton13, new org.netbeans.lib.awtextra.AbsoluteConstraints(330, 130, -1, -1));

 

jButton14.setLabel("-");

jButton14.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton14ActionPerformed(evt);

}

});

getContentPane().add(jButton14, new org.netbeans.lib.awtextra.AbsoluteConstraints(390, 130, -1, -1));

 

jButton15.setLabel("*");

jButton15.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton15ActionPerformed(evt);

}

});

getContentPane().add(jButton15, new org.netbeans.lib.awtextra.AbsoluteConstraints(330, 170, -1, -1));

 

jButton16.setLabel("/");

jButton16.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton16ActionPerformed(evt);

}

});

getContentPane().add(jButton16, new org.netbeans.lib.awtextra.AbsoluteConstraints(390, 170, -1, -1));

 

jButton17.setLabel("=");

jButton17.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton17ActionPerformed(evt);

}

});

getContentPane().add(jButton17, new org.netbeans.lib.awtextra.AbsoluteConstraints(330, 210, 100, 60));

 

jTextField1.setEditable(false);

jTextField1.setFont(new java.awt.Font("Comic Sans MS", 1, 24));

jTextField1.setHorizontalAlignment(javax.swing.JTextField.RIGHT);

jTextField1.setText("0");

jTextField1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(255, 204, 204), 3));

jTextField1.setFocusCycleRoot(true);

jTextField1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jTextField1ActionPerformed(evt);

}

});

getContentPane().add(jTextField1, new org.netbeans.lib.awtextra.AbsoluteConstraints(70, 60, 360, -1));

jTextField1.getAccessibleContext().setAccessibleName("");

 

jLabel1.setFont(new java.awt.Font("Tahoma", 0, 8));

jLabel1.setText("By : Siti Witty Ariyanti");

getContentPane().add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(370, 320, -1, -1));

 

jLabel2.setIcon(new javax.swing.ImageIcon("D:\\ITB\\BAHAN KULIAH\\8. JAVA2SE\\netbeans project\\Kalkulator\\src\\kalkulator\\nomor.jpg")); // NOI18N

getContentPane().add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 0, 490, 360));

 

pack();

}// </editor-fold>

 

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

a="1";

jTextField1.setText(a);

}

 

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {

a="2";

jTextField1.setText(a);

}

 

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {

a="3";

jTextField1.setText(a);

}

 

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {

a="4";

jTextField1.setText(a);

}

 

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {

a="5";

jTextField1.setText(a);

}

 

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {

a="6";

jTextField1.setText(a);

}

 

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {

a="7";

jTextField1.setText(a);

}

 

private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {

a="8";

jTextField1.setText(a);

}

 

private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {

a="9";

jTextField1.setText(a);

}

 

private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {

a="0";

jTextField1.setText(a);

}

 

private void jButton12ActionPerformed(java.awt.event.ActionEvent evt) {

jTextField1.setText("0");

nilai1=0;

nilai2=0;

tot=0;

a="";

}

 

private void jButton13ActionPerformed(java.awt.event.ActionEvent evt) {

nilai1=Double.parseDouble(a);

jTextField1.setText("+");

a="";

pil=1;

}

 

private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {

nilai1=Double.parseDouble(a);

jTextField1.setText("-");

a="";

pil=2;

}

 

private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {

nilai1=Double.parseDouble(a);

jTextField1.setText("*");

a="";

pil=3;

}

 

private void jButton16ActionPerformed(java.awt.event.ActionEvent evt) {

nilai1=Double.parseDouble(a);

jTextField1.setText("/");

a="";

pil=4;

}

 

private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:

}

 

private void jButton17ActionPerformed(java.awt.event.ActionEvent evt) {

switch(pil){

case 1:

nilai2=Double.parseDouble(a);

tot=nilai1+nilai2;

a=Double.toString(tot);

jTextField1.setText(a);

break;

case 2:

nilai2=Double.parseDouble(a);

tot=nilai1-nilai2;

a=Double.toString(tot);

jTextField1.setText(a);

break;

case 3:

nilai2=Double.parseDouble(a);

tot=nilai1*nilai2;

a=Double.toString(tot);

jTextField1.setText(a);

break;

case 4:

nilai2=Double.parseDouble(a);

tot=nilai1/nilai2;

a=Double.toString(tot);

jTextField1.setText(a);

break;

}

}

 

// Variables declaration - do not modify

private javax.swing.JButton jButton1;

private javax.swing.JButton jButton11;

private javax.swing.JButton jButton12;

private javax.swing.JButton jButton13;

private javax.swing.JButton jButton14;

private javax.swing.JButton jButton15;

private javax.swing.JButton jButton16;

private javax.swing.JButton jButton17;

private javax.swing.JButton jButton2;

private javax.swing.JButton jButton3;

private javax.swing.JButton jButton4;

private javax.swing.JButton jButton5;

private javax.swing.JButton jButton6;

private javax.swing.JButton jButton7;

private javax.swing.JButton jButton8;

private javax.swing.JButton jButton9;

private javax.swing.JLabel jLabel1;

private javax.swing.JLabel jLabel2;

private javax.swing.JTextField jTextField1;

// End of variables declaration

}