ToString() of the Object class. Guide please

Question

Hiya,
I need to ask a question please.
I havent understood the exact meaning of the toString() defined
in the Object class?
When and where do we need to override this?
How can I use this inherited method and see the output
How can I use this method,now overidden and see the output.
Can some please send in a small code...
Regds

Answer 1

"String Representation" doesn't sound like a widget to
me... I haven't tried it, though. Can you provide some
code please, showing how I could use the mechanism you
mentioned?You know.... Widgets!import java.awt.*;
import javax.swing.*;
public class Test3 extends JFrame {
  public Test3() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container content = getContentPane();
    MyObject[] myData = {new MyObject("Hello",1),new MyObject("Hi",27)};
    JList jl = new JList(myData);
    jl.setCellRenderer(new Widget());
    content.add(jl, BorderLayout.CENTER);
    setSize(300, 300);
    setVisible(true);
  public static void main(String[] arghs) { new Test3(); }
class Widget extends DefaultListCellRenderer {
  public Component getListCellRendererComponent(JList list, Object value,int index,
                                                boolean selected,boolean focus) {
    JLabel jl = (JLabel)super.getListCellRendererComponent(list,
        value,index,selected,focus);
    jl.setText("("+jl.getText()+")");
    return jl;
class MyObject extends Object {
  String name;
  int num;
  public MyObject(String name, int num) {
    this.name=name;
    this.num=num;
  public String toString() { return name+"-"+num; }
}