// ChoiceボタンとCheckboxボタンの例 import java.awt.*; import java.applet.Applet; public class Button2 extends Applet { Choice choicebtn; Checkbox checkbtn; public void init() { checkbtn = new Checkbox("Gokigen"); choicebtn = new Choice(); choicebtn.addItem("oyatsu"); choicebtn.addItem("gohan"); add(choicebtn); add(checkbtn); } public boolean action(Event e, Object o) { if (e.target instanceof Choice) { System.out.println("Choice Button"); System.out.println(o.toString()); } else if (e.target instanceof Checkbox) { System.out.println("Checkbox Button"); System.out.println(o.toString()); } return true; } }