package area;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;

public class Main{

    static JTextArea area1;
    
    static JTextArea area2;
    
    public static void main(String args[]){
        JFrame f = new JFrame();
        initial();
        
        JPanel p = new JPanel();
        f.getContentPane().add(p);
        p.setLayout(null);
        
        p.add(area1);
        area1.setBounds(0, 0, 300, 250);
        
        p.add(area2);
        area2.setBounds(0, 260, 300, 250);
        
        f.setSize(300, 600);
        f.setVisible(true);
    }
    
    public static void initial(){
        area1 = new JTextArea();
        area2 = new JTextArea();

        area1.addCaretListener(new CaretListener(){
            public void caretUpdate(CaretEvent arg0) {
                area2.setText(area1.getText());
            }
            
        });
    }
}