import javax.swing.*;
import java.awt.*;

public class TextWriter extends JPanel{
    public int width;
    public int height;
    public String r1 = "";
    public String r2 = "";
    public String r3 = "";

    public TextWriter(int w,int h){
        width = w;
        height = h;
        JFrame myframe= new JFrame();
        myframe.getContentPane().add(this);
        myframe.setTitle("TextWriter");
        myframe.setSize(width,height);
        myframe.setVisible(true);
        myframe.setBackground(Color.WHITE);
    }

    public void paintComponent(Graphics g){
        g.drawString(r1,20,30);
        g.drawString(r2,20,80);
        g.drawString(r3,20,140);

    }


    public void print1(String s){
        r1 += s;
        this.repaint();

    }
    public void reset1(String s){
        r1 = s;
        this.repaint();
    }
    public void print2(String s){
        r2 += s;
        this.repaint();
    }
    public void reset2(String s){
        r2 = s;
        this.repaint();
    }
    public void print3(String s){
        r3 += s;
        this.repaint();
    }
    public void reset3(String s){
        r3 = s;
        this.repaint();
    }

}








import javax.swing.*;
public class TestTextWriter
{ public static void main(String[] args)
{ TextWriter writer = new TextWriter(300, 200);
    String s = JOptionPane.showInputDialog("Please type some text:");
    writer.print1(s);
    s = JOptionPane.showInputDialog("Try it again:");
    writer.print1(s);
    s = JOptionPane.showInputDialog("Once more:");
    writer.print2(s);
    s = JOptionPane.showInputDialog("Last time:");
    writer.print3(s);
}
}