GUI Programming Note 04:gui (HelloWorld) Form case

1.Frame

In Java, aFrame is a control that can be loaded as a parent form for other swing controls. Case:

1  Packagecn.itcast_01;2 3 ImportJava.awt.Frame;4 5  Public classFramedemo {6      Public Static voidMain (string[] args) {7         //Create a Form object8         //frame f = new frame ();9         //Frame (String title)TenFrame f =NewFrame ("Brigitte"); One  A         //set the form title -         //f.settitle ("HelloWorld"); -         //Set Form size theF.setsize (400, 300);//units: Pixels -         //set the form position -F.setlocation (400, 200); -  +         //invokes a method that sets the form to be visible -         //f.show (); +F.setvisible (true); A  at         //System.out.println ("HelloWorld"); -     } -}

The effect of running:

2. Optimization of the Code:

 Packagecn.itcast_01;Importjava.awt.Dimension;ImportJava.awt.Frame;ImportJava.awt.Point; Public classFrameDemo2 { Public Static voidMain (string[] args) {//Creating ObjectsFrame f =NewFrame ("Relationship of Method call"));         //Dimension (int width, int height)Dimension d = new Dimension (400, 300); F.setsize (d);  //Point (int x, int y)Point p = New point (400, 200); f.setlocation (P); //one way to fix setbounds (int x, int y, int width, int height);        //f.setbounds ( .); F.setvisible (true); }}

GUI Programming Note 04:gui (HelloWorld) Form case