Simple JFrame Doubt

Question

Why is the jextfield on the jframe so small.
Also How do I update the textField of MyButton JFrame from JButtonActionListener?
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
public class MYButton extends JFrame {
     JButton jbnButton1;
     JTextField jtfClick;
     MYButton() {
          jbnButton1 = new JButton("Click Me");
          jbnButton1.addActionListener(new JButtonActionListener(MYButton.this));
          jtfClick = new JTextField();
          setLayout(new FlowLayout());
          getContentPane().add(jbnButton1);
          getContentPane().add(jtfClick);
          setSize(400, 400);
          pack();
          setTitle("Example JFrame");
          setVisible(true);
     public static void main(String args[]) {
          new MYButton();
     public JTextField getJtfClick() {
          return jtfClick;
     public void setJtfClick(JTextField jtfClick) {
          this.jtfClick = jtfClick;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
public class JButtonActionListener implements ActionListener {
     JFrame parent;
     public JButtonActionListener(JFrame p) {
          parent = p;
     public void actionPerformed(ActionEvent e) {
//How do I update the textField of MyButton JFrame from here
}

Answer 1

hemanthjava wrote:
Why is the jextfield on the jframe so small. Because it hasn't been given a preferred size and FlowLayout isn't going to assign it one. Why not initialize it like:
        jtfClick = new JTextField(12);
Also How do I update the textField of MyButton JFrame from JButtonActionListener?You could pass a reference to the JFrame to the action listener by way of the listener's constructor.