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Introduction

The Frame class is a top-level window with a border and title. It uses BorderLayout as the default layout manager.

Class declaration

Following is the declaration for java.awt.Frame class:

public class Frame
   extends Window
      implements MenuContainer

Field

Following are the fields for java.awt.Frame class:

• static float BOTTOM_ALIGNMENT — Ease-of-use constant for getAlignmentY.
• static int CROSSHAIR_CURSOR — Deprecated. replaced by Cursor.CROSSHAIR_CURSOR.
• static int DEFAULT_CURSOR — Deprecated. replaced by Cursor.DEFAULT_CURSOR.
• static int E_RESIZE_CURSOR — Deprecated. replaced by Cursor.E_RESIZE_CURSOR.
• static int HAND_CURSOR — Deprecated. replaced by Cursor.HAND_CURSOR.
• static int ICONIFIED — This state bit indicates that frame is iconified.
• static int MAXIMIZED_BOTH — This state bit mask indicates that frame is fully maximized (that is both horizontally and vertically).
• static int MAXIMIZED_HORIZ — This state bit indicates that frame is maximized in the horizontal direction.
• static int MAXIMIZED_VERT — This state bit indicates that frame is maximized in the vertical direction.
• static int MOVE_CURSOR — Deprecated. replaced by Cursor.MOVE_CURSOR.
• static int N_RESIZE_CURSOR — Deprecated. replaced by Cursor.N_RESIZE_CURSOR.
• static int NE_RESIZE_CURSOR — Deprecated. replaced by Cursor.NE_RESIZE_CURSOR.
• static int NORMAL — Frame is in the “normal” state.
• static int NW_RESIZE_CURSOR — Deprecated. replaced by Cursor.NW_RESIZE_CURSOR.
• static int S_RESIZE_CURSOR — Deprecated. replaced by Cursor.S_RESIZE_CURSOR.
• static int SE_RESIZE_CURSOR — Deprecated. replaced by Cursor.SE_RESIZE_CURSOR.
• static int SW_RESIZE_CURSOR — Deprecated. replaced by Cursor.SW_RESIZE_CURSOR.
• static int TEXT_CURSOR — Deprecated. replaced by Cursor.TEXT_CURSOR.
• static int W_RESIZE_CURSOR — Deprecated. replaced by Cursor.W_RESIZE_CURSOR.
• static int WAIT_CURSOR — Deprecated. replaced by Cursor.WAIT_CURSOR.

Class constructors

Class methods

Methods inherited

This class inherits methods from the following classes:

• java.awt.Window
• java.awt.Container
• java.awt.Component
• java.lang.Object

Frame Example

Create the following java program using any editor of your choice in say D:/ > AWT > com > adglob > gui >AwtContainerDemo.java

package com.adglob.gui;

import java.awt.*;
import java.awt.event.*;

public class AwtContainerDemo {
   private Frame mainFrame;
   private Label headerLabel;
   private Label statusLabel;
   private Panel controlPanel;
   private Label msglabel;

   public AwtContainerDemo(){
      prepareGUI();
   }

   public static void main(String[] args){
      AwtContainerDemo  awtContainerDemo = new AwtContainerDemo();          
      awtContainerDemo.showFrameDemo();
   }

   private void prepareGUI(){
      mainFrame = new Frame("Java AWT Examples");
      mainFrame.setSize(400,400);
      mainFrame.setLayout(new GridLayout(3, 1));
      mainFrame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent windowEvent){
            System.exit(0);
         }        
      });    
      headerLabel = new Label();
      headerLabel.setAlignment(Label.CENTER);
      statusLabel = new Label();        
      statusLabel.setAlignment(Label.CENTER);
      statusLabel.setSize(350,100);
   
      msglabel = new Label();
      msglabel.setAlignment(Label.CENTER);
      msglabel.setText("Welcome to Adglob AWT Tutorial.");

      controlPanel = new Panel();
      controlPanel.setLayout(new FlowLayout());

      mainFrame.add(headerLabel);
      mainFrame.add(controlPanel);
      mainFrame.add(statusLabel);
      mainFrame.setVisible(true);  
   }
   
   private void showFrameDemo(){
      headerLabel.setText("Container in action: Frame");   

      final Frame frame = new Frame();
      frame.setSize(300, 300);
      frame.setLayout(new FlowLayout());       
      frame.add(msglabel);
      frame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent windowEvent){
            frame.dispose();
         }        
      });    
      Button okButton = new Button("Open a Frame");

      okButton.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            statusLabel.setText("A Frame shown to the user.");
            frame.setVisible(true);
         }
      });
      controlPanel.add(okButton);

      mainFrame.setVisible(true);  
   }
}

Compile the program using command prompt. Go to D:/ > AWT and type the following command.

D:\AWT>javac com\adglob\gui\AwtContainerDemo.java

If no error comes that means compilation is successful. Run the program using following command.

D:\AWT>java com.adglob.gui.AwtContainerDemo

Verify the following output

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