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Categories / Java by API / Javax Swing

 

Box

import java.awt.BorderLayout; import java.awt.Container; import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.ButtonGroup; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JRadioButton; import javax.swing.border.EtchedBorder; import javax.swing.border.TitledBorder; public class MainClass {   public static void main(String[] args) {     JFrame aWindow = new JFrame("This is a Box Layout");     aWindow.setBounds(200, 200, 200, 200);     aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     Box left = Box.createVerticalBox();     left.add(Box.createVerticalStrut(30));     ButtonGroup radioGroup = new ButtonGroup();     JRadioButton rbutton;     radioGroup.add(rbutton = new JRadioButton("Red"));     left.add(rbutton);     left.add(Box.createVerticalStrut(30));     radioGroup.add(rbutton = new JRadioButton("Green"));     left.add(rbutton);     left.add(Box.createVerticalStrut(30));     radioGroup.add(rbutton = new JRadioButton("Blue"));     left.add(rbutton);     left.add(Box.createVerticalStrut(30));     radioGroup.add(rbutton = new JRadioButton("Yellow"));     left.add(rbutton);     left.add(Box.createGlue());     JPanel leftPanel = new JPanel(new BorderLayout());     leftPanel.setBorder(new TitledBorder(new EtchedBorder(), "Line Color"));     leftPanel.add(left, BorderLayout.CENTER);     Box right = Box.createVerticalBox();     right.add(Box.createVerticalStrut(30));     right.add(new JCheckBox("Dashed"));     right.add(Box.createVerticalStrut(30));     right.add(new JCheckBox("Thick"));     right.add(Box.createVerticalStrut(30));     right.add(new JCheckBox("Rounded"));     right.add(Box.createGlue());     JPanel rightPanel = new JPanel(new BorderLayout());     rightPanel         .setBorder(new TitledBorder(new EtchedBorder(), "Line Properties"));     rightPanel.add(right, BorderLayout.CENTER);     Box top = Box.createHorizontalBox();     top.add(leftPanel);     top.add(Box.createHorizontalStrut(5));     top.add(rightPanel);     Container content = aWindow.getContentPane();     content.setLayout(new BorderLayout());     content.add(top, BorderLayout.CENTER);     BoxLayout box = new BoxLayout(content, BoxLayout.Y_AXIS);     content.setLayout(box);     content.add(top);     aWindow.setVisible(true);   } }