GUI. interface. CUI Character-Based User Interface Command-Based User Interface GUI. Graphical User Interface GUI. Frame Frame.

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1 JavaGUI I interface ] CUI Character-Based User Interface Command-Based User Interface GUI Graphical User Interface GUI GUI 1. ( ) 2. Frame Frame Frameextends ::= [public] class {[ ] [ ] ::= [extends ] [implements, ] ::= [public] [static] ( [= ]), ; ::= [public] [static] ([, ]) [ ] {[ ] ::= [throws, ] GUIa // GUI public class GUIa extends Frame { // Frame // Button b0 = new Button("Even/Odd?"); Label x0 = new Label("Type a number and press..."); public GUIa() { // // off add(t0); t0.setbounds(10, 40, 90, 30); // x/y add(b0); b0.setbounds(110, 40, 80, 30); // add(x0); x0.setbounds(10, 80, 180, 30); // // main() Frame win = new GUIa(); // win win.setsize(200, 150); // //

2 Control + x GUI GUIb public class GUIb extends Frame { Button b0 = new Button("A Button"); Label x0 = new Label("A Label..."); Checkbox c0 = new Checkbox("Check"); List l1 = new List(); TextArea t1 = new TextArea("some text..."); Choice c1 = new Choice(); public GUIb() { add(b0); b0.setbounds(10, 40, 60, 30); add(x0); x0.setbounds(10, 80, 60, 30); add(t0); t0.setbounds(80, 80, 60, 30); add(c0); c0.setbounds(150, 80, 60, 30); add(l1); l1.setbounds(10, 120, 80, 100); l1.add("hello!"); l1.add("how are you?"); add(t1); t1.setbounds(100, 120, 80, 100); add(c1); c1.setbounds(10, 230, 60, 30); c1.add("red"); c1.add("green"); c1.add("blue"); Frame win = new GUIb(); win.setsize(250, 300); GUI GUIc public class GUIc extends Frame { Button b0 = new Button("Calculate"); Label x0 = new Label("temperature conversion"); TextField t1 = new TextField(); Choice c0 = new Choice(); public GUIc() { add(t0); t0.setbounds(10, 40, 80, 30); add(c0); c0.setbounds(100, 40, 80, 30); c0.add("f to C"); c0.add("c to F"); add(b0); b0.setbounds(10, 80, 60, 30); add(x0); x0.setbounds(10, 120, 180, 30); Frame win = new GUIc(); win.setsize(200, 160); JavaBeans GUI

3 actionperformed() windowclosing() actionperformed() windowclosing() class MyAction implements ActionListener { b0.addactionlistener(new MyAction()); class MyClosing entends WindowAdapter { win.addwindowlistener(new Myclosing()); // windowclosing() implements extends new () { ); );

4 GUIaa public class GUIaa extends Frame { Button b0 = new Button("Even/Odd?"); Label x0 = new Label("Type a number and press..."); public GUIaa() { add(t0); t0.setbounds(10, 40, 90, 30); add(b0); b0.setbounds(110, 40, 80, 30); add(x0); x0.setbounds(10, 80, 180, 30); int i = (new Integer(t0.getText())).intValue(); t0.settext(""); if(i % 2 == 0) { x0.settext(i + " is Even"); else { x0.settext(i + " is Odd"); ); Frame win = new GUIaa(); win.setsize(200, 150); System.exit(0); ); Java (exception) try try { catch(exception ex) { throw throw ; ColorRGBa try public class ColorRGBa extends Frame { Button b0 = new Button("Display"); Label[] la = new Label[]{new Label ("Red"), new Label ("Green"), new Label ("Blue") ; TextField[] ta = new TextField[]{new TextField(), new TextField(), new TextField();

5 Label x0 = new Label("Input RGB values [0..255]"); public ColorRGBa() { for(int i = 0; i < la.length; i++) { add(la[i]); la[i].setbounds(10, 40 + i*40, 60, 30); add(ta[i]); ta[i].setbounds(80, 40 + i*40, 60, 30); add(b0); b0.setbounds(10, 160, 60, 30); add(x0); x0.setbounds(10, 200, 180, 30); try { x0.setbackground(new Color( (new Integer(ta[0].getText())).intValue(), (new Integer(ta[1].getText())).intValue(), (new Integer(ta[2].getText())).intValue())); catch(exception ex) { x0.settext(ex.tostring()); ); Frame win = new ColorRGBa(); win.setsize(200, 250); System.exit(0); ); 1. (GUIaa) GUI TANIGUCHI,Yuji Last modified: 2004/12/06(Mon) 08:36:32

1 GUI GUI GUI GUI GUI. GUI(Graphical User Interface) JDK java.awt. ? Component

1 GUI GUI GUI GUI GUI. GUI(Graphical User Interface) JDK java.awt. ? Component 99 6 1999.10.13 0 GUI GUI JDK 1.1 GUI 1 GUI GUI GUI(Graphical User Interface) GUI (GUI ) / ( GUI ) Java GUI JDK 1.1 1.2 1.2 Swing 1.1 java.awt GUI? Component setbounds(int, int, int, int) (x,y) setforeground(color)