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JAVA GUI : coba pake Warning

Dec 1st, 2011
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Java 1.49 KB | None | 0 0
  1. // paket yang diperlukan
  2. import javax.swing.*;
  3. import java.awt.event.ActionListener;
  4. import java.awt.event.ActionEvent;
  5. import javax.swing.JOptionPane;
  6.  
  7. class CobaWarning extends JFrame{
  8.     // attribut
  9.     //membuat tombol
  10.     JButton tombol1 = new JButton("warning !");
  11.     // JTextField(String text,int panjang)
  12.     JTextField text_f = new JTextField("text awal",25);
  13.    
  14.     //konstruktor
  15.     public CobaWarning(){
  16.         //frame seting---------------------------------------------------------------------
  17.         //memanggil konstruktor kelas induk (JFrame)
  18.         super("Coba Warning");
  19.         //seting besar frame 400 x 400 px
  20.         this.setSize(200,200);
  21.         //seting agar bisa ditutup
  22.         this.setDefaultCloseOperation(EXIT_ON_CLOSE);
  23.         //seting kemunculan frame di tengah window
  24.         this.setLocationRelativeTo(null);
  25.         //seting layout frame
  26.         this.getContentPane().setLayout(null);
  27.         //frame seting---------------------------------------------------------------------
  28.         //menambahkan komponen ke frame dan seting letak
  29.         this.add(tombol1);
  30.         this.add(text_f);
  31.         // setbounds(x,y,lebar,tinggi)
  32.         tombol1.setBounds(10,10,150,25);
  33.         text_f.setBounds(10,40,150,25);
  34.         //seting aksi tombol
  35.         tombol1.addActionListener(new ActionListener( ) {
  36.             public void actionPerformed(ActionEvent e){
  37.                 // kode disini; isi text_f dengan nilai
  38.                 JOptionPane.showMessageDialog(null,"isi text nya : "+text_f.getText());
  39.             }
  40.         });
  41.         // menampilkan frame
  42.         show();
  43.        
  44.     }
  45.    
  46.     public static void main(String[] args){
  47.         new CobaWarning();
  48.     }
  49. }
  50.  
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