3月13日，hobby（前几日综合），每日20行。

import java.awt.*; public class Hobby { public static void main(String[] args) { Frame f = new Frame("A Test Window"); f.setSize(495,255); f.setLayout(new FlowLayout(FlowLayout.CENTER)); f.add(new Label("Your name:")); f.add(new TextField(30)); f.add(new Label("Sex:")); CheckboxGroup cbg = new CheckboxGroup(); f.add(new Checkbox("Male",cbg,true)); f.add(new Checkbox("Female",cbg,false)); f.add(new Label("What are you like:")); f.add(new Checkbox("Apple")); f.add(new Checkbox("Orange")); f.add(new Checkbox("Strawberry")); f.add(new Checkbox("Peach")); f.add(new Label("How much do you eat them per week:")); Choice c = new Choice(); c.addItem("less than 1kg"); c.addItem("1kg to 3kg"); c.addItem("more than 3kg"); f.add(c); f.add(new Label("What's your opnion of eating fruit:")); f.add(new TextArea("I think ",3,60)); f.add(new Button("OK")); f.add(new Button("Clear")); f.setVisible(true); } }