// // WidgetDemo class // part of the set of documents known as Java no sugar. // Copyright (c) 1996 Sunil Gupta, sunil@magnetic.demon.co.uk // placed into the public domain by the author // import java.awt.*; import java.applet.*; public class WidgetDemo extends Applet { //******************************************************************* // globals //******************************************************************* static final String BUTTON = "BUTTON"; static final String CHECKBOX = "CHECKBOX"; static final String CHOICE = "CHOICE"; static final String LABEL = "LABEL"; static final String LIST = "LIST"; static final String SCROLLBAR = "SCROLLBAR"; static final String TEXTAREA = "TEXTAREA"; static final String TEXTFIELD = "TEXTFIELD"; //******************************************************************* // applet methods //******************************************************************* public void init() { String style; style = getParameter("STYLE"); if (style == null) System.exit(1); else { this.setLayout( new FlowLayout()); if (style.equals(BUTTON)) { this.add( new Button("A button")); } else if (style.equals(CHECKBOX)) { CheckboxGroup group; Checkbox[] boxes; group = new CheckboxGroup(); boxes = new Checkbox[3]; boxes[0] = new Checkbox("First item", group, false); boxes[1] = new Checkbox("Second item", group, true); boxes[2] = new Checkbox("Third item", group, false); this.add(boxes[0]); this.add(boxes[1]); this.add(boxes[2]); this.add(new Checkbox("outside group", null, false)); } else if (style.equals(CHOICE)) { Choice thing; thing = new Choice(); thing.addItem("First Choice"); thing.addItem("Second Choice"); thing.addItem("Third Choice"); this.add(thing); } else if (style.equals(LIST)) { List list; list = new List(4, true); list.addItem("Machine Code"); list.addItem("Assembler"); list.addItem("Basic"); list.addItem("Visual Basic"); list.addItem("C"); list.addItem("C++"); list.addItem("Java"); list.addItem("* Delphi *"); this.add(list); } else if (style.equals(LABEL)) { this.add( new Label("A label")); } else if (style.equals(SCROLLBAR)) { this.add ( new Scrollbar(Scrollbar.VERTICAL)); this.add ( new Scrollbar(Scrollbar.HORIZONTAL)); } else if (style.equals(TEXTAREA)) { this.add( new TextArea("This is a text area",5,30)); } else if (style.equals(TEXTFIELD)) { this.add( new TextField("This is a text field",30)); } } } }
file: /Techref/language/java/nosugar/ui/code/WidgetDemo.java, 2KB, , updated: 1996/10/10 11:10, local time: 2024/8/26 09:18,
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