AWT-Abstract Window Toolkit

Class Frame [ java.awt ]

• An Object of this type represents a Frame Window.
• A Frame is a Container whose default layout manager is BorderLayout.
• We can derive our frame window from this class.

• Frame()
• will create a frame window without title text.
• For ex:frm=new Frame();
• Frame(String title)
• will create a frame window with specified title text.
• For ex:frm=new Frame("CCIT-Amravati");

• void setTitle(String title)
• Sets the title for this frame.
• For ex:frm.setTitle("CCIT-India");
• String getTitle()
• Gets the title of the frame.
• For ex:String data=frm.getTitle();
• void setResizable(boolean resizable)
• Sets whether this frame is resizable or not.
• For ex:frm.setResizable(false);
• void setMenuBar(MenuBar mb)
• Sets the menu bar for this frame.
• For ex:frm.setMenuBar(mb);

 import java.awt.*;
 class demo
 {
    public static void main(String args[ ])
    {
        Frame frm=new Frame("CCIT-Amravati");
        frm.setSize(400,300);
        frm.setVisible(true);
    }
 }

• By default the close button of window does not work.
• To close a window we have to implement WindowListener interface.
• Or we can add our own EXIT button
• So now current window can be closed by terminating application by using key ctrl+C at command prompt

 import java.awt.*;
 class MyFrame extends Frame
 {
    public MyFrame()
    {
        setBackground(Color.yellow);
        setTitle("CCIT india");
    }
 }
 class demo
 {
    public static void main(String args[])
    {
        MyFrame frm=new MyFrame();
        frm.setSize(400,300);
        frm.setVisible(true);
    }
 }

 import java.awt.*;
 import java.awt.event.*;
 class MyFrame extends Frame 
 implements ActionListener
 {
    Button btn;
    public MyFrame()
    {
        btn=new Button("Exit");
        add(btn,"South");
        btn.addActionListener(this);
    }
    public void actionPerformed(ActionEvent e)
    {
        System.exit(0);
    }
 } 
 class demo
 {
    public static void main(String args[ ])
    {
        MyFrame frm=new MyFrame();
        frm.setSize(400,300);
        frm.setVisible(true);
    }
 }

• Java Application can be programmatically terminated by using method System.exit(0)
• Where zero indicates to the operating environment that program is normally terminated.