Menghitung Luas Persegi Panjang dengan Netbean

Menghitung Luas Persegi Panjang :
Buat Form seperti di bawah ini, dengan menggunakan jFrame Form.


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

*/
/*
* LuasPersegiPanjang.java
*
* Created on Dec 5, 2011, 2:34:08 PM
*/
/**
*
* @author ***
*/
public class LuasPersegiPanjang extends javax.swing.JFrame {
/** Creates new form LuasPersegiPanjang */
public LuasPersegiPanjang() {
initComponents();
}
private void jB_hitungpersegipanjangActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
int panjang = Integer.parseInt(jTF_panjangPP.getText());
int lebar = Integer.parseInt(jTF_lebarPP.getText());
int hasil = panjang*lebar;
jTF_hasilLuasPersegiPanjang.setText(String.valueOf(hasil));
}
public static void main(String args[]) {
public void run() {
new LuasPersegiPanjang().setVisible(true);
}
});
}
// Variables declaration – do not modify
private javax.swing.JButton jBHapusPP;
private javax.swing.JButton jB_hitungpersegipanjang;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
private javax.swing.JTextField jTF_hasilLuasPersegiPanjang;
private javax.swing.JTextField jTF_lebarPP;
private javax.swing.JTextField jTF_panjangPP;
// End of variables declaration
}
Selamat mencoba..