Java by API/java.awt/SpringLayout

new SpringLayout()

   <source lang="java">

import java.awt.Container; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.Spring; import javax.swing.SpringLayout; public class MainClass {

 public static void main(String[] args) {
   JFrame aWindow = new JFrame();
   aWindow.setBounds(200, 200, 200, 200);
   aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   Container content = aWindow.getContentPane();
   content.add(new SpringLayoutPanel());
   aWindow.setVisible(true);
 }

} class SpringLayoutPanel extends JPanel {

 public SpringLayoutPanel() {
   SpringLayout layout = new SpringLayout();
   setLayout(layout);
   JButton[] buttons = new JButton[6];
   for (int i = 0; i < buttons.length; i++) {
     buttons[i] = new JButton("Press " + (i + 1));
     add(buttons[i]);
   }
   Spring xSpring = Spring.constant(5, 15, 25);
   Spring ySpring = Spring.constant(10, 30, 50);
   Spring wSpring = Spring.constant(30, 80, 130);
   SpringLayout.Constraints buttonConstr = layout.getConstraints(buttons[0]);
   buttonConstr.setX(xSpring);
   buttonConstr.setY(ySpring);
   for (int i = 0; i < buttons.length; i++) {
     buttonConstr = layout.getConstraints(buttons[i]);
     buttonConstr.setHeight(ySpring);
     buttonConstr.setWidth(wSpring);
     if (i > 0) {
       layout.putConstraint(SpringLayout.WEST, buttons[i], xSpring,
           SpringLayout.EAST, buttons[i - 1]);
       layout.putConstraint(SpringLayout.NORTH, buttons[i], ySpring,
           SpringLayout.SOUTH, buttons[i - 1]);
     }
   }
   SpringLayout.Constraints constr = layout.getConstraints(this);
   constr.setConstraint(SpringLayout.EAST, Spring.sum(buttonConstr
       .getConstraint(SpringLayout.EAST), Spring.constant(15)));
   constr.setConstraint(SpringLayout.SOUTH, Spring.sum(buttonConstr
       .getConstraint(SpringLayout.SOUTH), Spring.constant(10)));
 }

}

      </source>
   
  
 
  

Spring: constant(int min, int pref, int max)

   <source lang="java">

import java.awt.Container; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.Spring; import javax.swing.SpringLayout; public class MainClass {

 public static void main(String[] args) {
   JFrame aWindow = new JFrame();
   aWindow.setBounds(200, 200, 200, 200);
   aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   Container content = aWindow.getContentPane();
   content.add(new SpringLayoutPanel());
   aWindow.setVisible(true);
 }

} class SpringLayoutPanel extends JPanel {

 public SpringLayoutPanel() {
   SpringLayout layout = new SpringLayout();
   setLayout(layout);
   JButton[] buttons = new JButton[6];
   for (int i = 0; i < buttons.length; i++) {
     buttons[i] = new JButton("Press " + (i + 1));
     add(buttons[i]);
   }
   Spring xSpring = Spring.constant(5, 15, 25);
   Spring ySpring = Spring.constant(10, 30, 50);
   Spring wSpring = Spring.constant(30, 80, 130);
   SpringLayout.Constraints buttonConstr = layout.getConstraints(buttons[0]);
   buttonConstr.setX(xSpring);
   buttonConstr.setY(ySpring);
   for (int i = 0; i < buttons.length; i++) {
     buttonConstr = layout.getConstraints(buttons[i]);
     buttonConstr.setHeight(ySpring);
     buttonConstr.setWidth(wSpring);
     if (i > 0) {
       layout.putConstraint(SpringLayout.WEST, buttons[i], xSpring,
           SpringLayout.EAST, buttons[i - 1]);
       layout.putConstraint(SpringLayout.NORTH, buttons[i], ySpring,
           SpringLayout.SOUTH, buttons[i - 1]);
     }
   }
   SpringLayout.Constraints constr = layout.getConstraints(this);
   constr.setConstraint(SpringLayout.EAST, Spring.sum(buttonConstr
       .getConstraint(SpringLayout.EAST), Spring.constant(15)));
   constr.setConstraint(SpringLayout.SOUTH, Spring.sum(buttonConstr
       .getConstraint(SpringLayout.SOUTH), Spring.constant(10)));
 }

}

      </source>