Computer Science, asked by iloveyou4838, 1 year ago

Write a program to create a child frame window within an applet

Answers

Answered by TheRose
3


Creating a new frame window from within an applet is actually quite easy. First, create

a subclass of Frame. Next, override any of the standard applet methods, such as init( ), start( ),

and stop( ), to show or hide the frame as needed. Finally, implement the windowClosing( )

method of the WindowListener interface, calling setVisible(false) when the window is closed.

Once you have defined a Frame subclass, you can create an object of that class. This causes

a frame window to come into existence, but it will not be initially visible. You make it visible

by calling setVisible( ). When created, the window is given a default height and width. You

can set the size of the window explicitly by calling the setSize( ) method.

The following applet creates a subclass of Frame called SampleFrame. A window of this

subclass is instantiated within the init( ) method of AppletFrame. Notice that SampleFrame

calls Frame's constructor. This causes a standard frame window to be created with the title

passed in title. This example overrides the applet's start( ) and stop( ) methods so that they

show and hide the child window, respectively. This causes the window to be removed

automatically when you terminate the applet, when you close the window, or, if using a

browser, when you move to another page. It also causes the child window to be shown when

the browser returns to the applet.

//  Create a child frame window from within an applet.

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

/*

<applet code="AppletFrame" width=300 height=50>

</applet>

*/

// Create a subclass of Frame.

class SampleFrame extends Frame {

SampleFrame(String title) {

super(title);

// create an object to handle 

}

public void paint

}

}

class MyWindowAdapter extends WindowAdapter {

SampleFrame sampleFrame;

public MyWindowAdapter(SampleFrame sampleFrame

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