Converting between applets and applications

1. Create an HTML page with an applet tag to invoke the applet.
2. Delete the main method.
3. Alter the class header so that it extends Applet rather than Frame.
4. Add the import for the library class Applet.
5. Change the name of the constructor method from the name of the class to init.
6. Add an invocation of a method to set the layout of widgets in the applet window.

1. Change the name of the init method to the name of the class. This is now the constructor method for the class. Delete the word void in the header for this method, since a constructor method has no return type.
2. Alter the class header so that it extends Frame rather than Applet.
3. Create a new method called main, with the header public static void main(String[] args). This is now the constructor method should create a Frame object as an instance of the class. So, if the class is called MyClass, the main method should be:

public static void main(String[] args){
MyClass f = new MyClass();
f.setSize(300, 200);
f.setVisible(true);
}

4. Delete the import for the class Applet, since it now redundant.
5. Add a method windowClosing to handle the event which is the user clicking on the close window button. This also involves adding implements WindowListener and this.addWindowListener(this); in order to reGISter the event handler.
6. Add an invocation of a method to set the layout of widgets in the frame.

This is typically:
setLayout(new FlowLayout());

上一篇： Nice用户手册（二）
下一篇： 从Hibernate2到3移植的两点初体验

标签：

版权申明：本站文章部分自网络，如有侵权，请联系：west999com@outlook.com
特别注意：本站所有转载文章言论不代表本站观点，本站所提供的摄影照片，插画，设计作品，如需使用，请与原作者联系，版权归原作者所有