Where type can be:
- Type.NORMAL: Represents a normal window. This is the default type for objects of the Window class or its descendants. Use this type for regular top-level windows.
- Type.POPUP: Represents a popup window. A popup window is a temporary window such as a drop-down menu or a tooltip. On some platforms, windows of that type may be forcibly made undecorated even if they are instances of the Frame or Dialog class, and have decorations enabled.
- Type.UTILITY: Represents a utility window. A utility window is usually a small window such as a toolbar or a palette. The native system may render the window with smaller title-bar if the window is either a Frame or a Dialog object, and if it has its decorations enabled.
Example:
- Create a new Java project of Java application, with main code named JavaTestSwing.java and JFrameWin.java extends javax.swing.JFrame.
package javatestswing; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.Box; import javax.swing.ButtonGroup; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JRadioButton; /** * * @web http://java-buddy.blogspot.com/ */ public class JFrameWin extends JFrame{ public JFrameWin(){ final JPanel jPanel = new JPanel(); this.setTitle("java-buddy.blogspot.com"); this.setSize(500, 400); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JButton buttonExit = new JButton(" Exit "); buttonExit.addActionListener(new ActionListener(){ @Override public void actionPerformed(ActionEvent ae) { System.exit(0); } }); final JRadioButton jRadioButtonA = new JRadioButton("NORMAL"); final JRadioButton jRadioButtonB = new JRadioButton("POPUP"); final JRadioButton jRadioButtonC = new JRadioButton("UTILITY"); ActionListener radioButtonActionListener = new ActionListener() { @Override public void actionPerformed(ActionEvent ae) { String cmd = ae.getActionCommand(); JFrame newFrame =new JFrame(); newFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); newFrame.setSize(300,200); newFrame.setTitle(cmd); if(cmd == "NORMAL"){ newFrame.setType(Type.NORMAL); }else if(cmd == "POPUP"){ newFrame.setType(Type.POPUP); }else if(cmd == "UTILITY"){ newFrame.setType(Type.UTILITY); } newFrame.setVisible(true); } }; jRadioButtonA.addActionListener(radioButtonActionListener); jRadioButtonB.addActionListener(radioButtonActionListener); jRadioButtonC.addActionListener(radioButtonActionListener); ButtonGroup buttonGroup = new ButtonGroup(); buttonGroup.add(jRadioButtonA); buttonGroup.add(jRadioButtonB); buttonGroup.add(jRadioButtonC); Box verticalBox = Box.createVerticalBox(); verticalBox.add(jRadioButtonA); verticalBox.add(jRadioButtonB); verticalBox.add(jRadioButtonC); jPanel.add(verticalBox); jPanel.add(buttonExit); this.add(jPanel); } }