نقاش:برمجة:جافا

import javax.swing.*; import java.awt.*; import java.awt.event.*; class a extends JFrame{

JTextField t=new JTextField ("bgfvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv"); JButton b1=new JButton("null"); JLabel l=new JLabel("write");

a(){ Container c=getContentPane(); c.setLayout(new FlowLayout()); c.add(l); c.add(t); c.add(b1);

but x=new but(); b1.addActionListener(x); setSize(100,360); setVisible(true);

        }

public static void main (String[]args){ new a(); }

class but implements ActionListener{

public void actionPerformed(ActionEvent z) { t.setText("");

}}}