Swing JFC Java

import java.awt.Component;
import java.awt.Container;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.SpringLayout;
public class SpringFormTest {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Spring");
    Container contentPane = frame.getContentPane();
    SpringLayout layout = new SpringLayout();
    contentPane.setLayout(layout);
    Component left = new JLabel("Left");
    Component right = new JTextField(15);
    contentPane.add(left);
    contentPane.add(right);
    layout.putConstraint(SpringLayout.WEST, left, 10, SpringLayout.WEST,
        contentPane);
    layout.putConstraint(SpringLayout.NORTH, left, 25, SpringLayout.NORTH,
        contentPane);
    layout.putConstraint(SpringLayout.NORTH, right, 25, SpringLayout.NORTH,
        contentPane);
    layout.putConstraint(SpringLayout.WEST, right, 20, SpringLayout.EAST,
        left);
    frame.setSize(300, 100);
    frame.show();
  }
}