A.TextField b = new TextField(“關(guān)閉”); B.Label b = new Label(“關(guān)閉”); C.Checkbox b = new Checkbox(“關(guān)閉”); D.Button b = new Button(“關(guān)閉”);
A.start() B.stop() C.paint() D.init()
A.name,height,width B.codebase,height,width C.code,name D.code,height,width