java程序设计初步卷答案

1、2011 年2012 年第二学期java 程序设计初步期末试题A 卷一、单项选择题（每题 2 分，共 20 分）1.B2. D3.D4.D5.A6.A7.C8.二、判断题（每题 2 分，共 20 分）9.C10.C1. F2. F3.T4.T5.F6. T7.T8. T9.F10.T三、写出下列程序的运行结果（每小题 5 分，共 20 分）1、days:29 3 5 62、98.0123、出错4、13579四、程序设计题（共 40 分）1、import java.io.*; public class Fei private data; public Fei(n)data = newn; dat

2、a0 = 1;data1 = 1;for(i = 2; i n; i+)datai = datai - 1 + datai - 2;public void save(String filename) throws Exception DataOutputStream dos = new DataOutputStream(newFileOutputStream(filename);for(i = 0; i 0)System.out.pr(dis.read() + t); dis.close();2、package .ccec.advanced; import javax.swing.

3、*;import java.awt.*; import java.awt.event.*; import java.io.*;class Questionnaire extends JFrame implementionListener Favorite f;/面板SexBox s;/面板NameBox n;/面板JTextArea t;ThreeButton tb;/三个按钮面板 Questionnaire()super(表); this.setDefaultCloseOperation(3);Container cc = this.getContentPane(); cc.setLayou

4、t(new FlowLayout(); testInit(); cc.add(n);cc.add(s);cc.add(f); cc.add(new JScrollPane(t); cc.add(tb); this.setBounds(300,200,280,300); this.setVisible(true);void testInit()f = new Favorite(); s = new SexBox(); n = new NameBox();t = new JTextArea(5,22); tb = new ThreeButton();tb.collect.addActionList

5、ener(this);public sic void main(String args) throws Exception / TODO Auto-generated method stub Fei f = new Fei(20); f.save(fei.dat);f.read(fei.dat);tb.save.addActionListener(this);tb.next.addActionListener(this);public void actionPerformed(ActionEvent e)JButton b = (JButton)e.getSource();if(b = tb.

6、collect)Stringname = ：+n.t.getText();Stringsex = ：+(s.man.iected()? 男 : 女);Stringfav = ：+(f.sport.iected()? 运动 : )+(puter.iected()? 电脑 : )+(f.music.iected()? 音乐 : )+(f.read.iected()? 阅读 : );t.setText(name+rn+sex+rn+fav+rnrn );else if(b = tb.next)t.setText();n.t.setText();f.reset();else tryFileWriter

7、 out = new FileWriter(list.txt,true);out.write(t.getText();olose();JOptionPane.showMessageDialog(this,文件已保存!);catch(Exception ee)public sic void main(String args)new Questionnaire();claameBox extends JPanelJTextField t;NameBox()t = new JTextField(10);add(new JLabel();add(t);class ThreeButton extends JPanelJButton collect,save,next;ThreeButton()super(new GridLayout(1,3,5,5);