关于java源代码1000的信息

java 源代码 基础点的 谢谢

package com.regex;

import java.io.*;

import java.net.URLDecoder;

import java.util.regex.*;

public class Regex {

private int REMARK=0;

private int LOGIC=0;

private int PHYSIC=0;

boolean start=false;

/**

* @param args

*/

public static void main(String[] args) { //测试方法

// TODO Auto-generated method stub

Regex re=new Regex();

re.regCount("Regex.java");

System.out.println("remark Line: "+re.REMARK);

System.out.println("logic Line: "+re.LOGIC);

System.out.println("physic Line: "+re.PHYSIC);

}/**

* @author BlueDance

* @param s

* @deprecated count

*/

public void regCount(String s){

String url=null;

try {

url=URLDecoder.decode(this.getClass().getResource(s).getPath(),"UTF-8");

} catch (Exception e) {

e.printStackTrace();

// TODO: handle exception

}

try {

BufferedReader br=new BufferedReader(new FileReader(new File(url)));

String s1=null;

while((s1=br.readLine())!=null){

PHYSIC++;

if(CheckChar(s1)==1){

REMARK++;

System.out.println("纯注释行："+s1);

}

if(CheckChar(s1)==2){

LOGIC++;

REMARK++;

System.out.println("非纯注释行："+s1);

}

if(CheckChar(s1)==3)

LOGIC++;

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}catch(IOException e){

e.printStackTrace();

}

}

/**

*

* @param s

* @return int

* @version check s

*/

public int CheckChar(String s){

String s1=null;

if(s!=null)

s1=s.trim();

//System.out.println(regCheck(s1,re));

if(regCheck(s1,"(//.*)")) //判断//开头的为纯注释行

return 1;

if(regCheck(s1,"(.*[;{})] *//.*)")) //判断不是//开头的非纯注释行

return 2;

if(regCheck(s1,"(//*.*)")){ //判断/*开头的纯注释行

start=true;

return 1;

}

if(regCheck(s1,"(.*[;{})]//*.*)")){ //判断不是/*开头的非纯注释行

start=true;

return 2;

}

if(regCheck(s1,"(.* */*/)")){ //判断*/结尾的纯注释行

start=false;

return 1;

}

if(regCheck(s1,"(.* */*/.*)")!strCheck(s1)){ //判断不是*/结尾的非纯注释行

if(strCheck(s1)){

start=false;

return 2;

}

}

if(start==true) //状态代码，start即/*开始时start=true*/结束时为false

return 1;

return 3;//ssssllll

}//aeee

/**

*

* @param s

* @param re

* @return boolean

*/

public boolean regCheck(String s,String re){ //正则表达试判断方法

return Pattern.matches(re,s);

}

public boolean strCheck(String s){ //中间有*/的字符判断 此方法最关键

if(s.indexOf("*/")0){

int count=0;

String y[]=s.split("/*/");

boolean boo[]=new boolean[y.length];

for (int i = 0; i y.length-1; i++) {

char c[]=y[i].toCharArray();

for (int j = 0; j c.length; j++) {

if(c[j]=='\\'c[j+1]=='"'){

count++;

}

}

if(count%2==0){

if(countNumber("\"",y[i])%2!=0){

boo[i]=true;

}else{

boo[i]=false;

}

}else{

if(countNumber("\"",y[i])%2==0){

boo[i]=true;

}else{

boo[i]=false;

}

}

}

for(int i=0;iboo.length;i++){

if(!boo[i])

return false;

}

return true;

}

return false;

}

public int countNumber(String s,String y){ //此方法为我前面写的字符串出现次数统计方法,不懂的可以看我前面的文章

int count=0;

String [] k=y.split(s);

if(y.lastIndexOf(s)==(y.length()-s.length()))

count=k.length;

else

count=k.length-1;

if(count==0)

System.out.println ("字符串\""+s+"\"在字符串\""+y+"\"没有出现过");

else

return count;

return -1;

}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class GoodLucky extends JFrame implements ActionListener{

JTextField tf = new JTextField(); //实例化一个文本域

//设置两个按钮

JButton b1 = new JButton("开始");

JButton b2 = new JButton("停止");

boolean isGo = false;

//构造函数

public GoodLucky(){

b1.setActionCommand("start");//在开始按钮上设置一个动作监听 start

JPanel p = new JPanel(); //实例化一个可视化容器

//将两个按钮添加到可视化容器上面，用add方法

p.add(b1);

p.add(b2);

//在两个按钮上增加监听的属性,自动调用下面的监听处理方法actionPerformed(ActionEvent e)，如果要代码有更好的可读性，可用内部类实现动作

//监听处理。

b1.addActionListener(this);

b2.addActionListener(this);

//将停止按钮设置为不可编辑（即不可按的状态）

b2.setEnabled(false);

this.getContentPane().add(tf,"North"); //将上面的文本域放在面板的北方，也就是上面（上北下南左西右东）

this.getContentPane().add(p,"South"); //将可视化容器pannel放在南边，也就是下面

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //设置用户在此窗体上发起 "close" 时默认执行的操作，参数EXIT_ON_CLOSE是使用 System exit 方法退出应用程序。仅在应用程序中使用

this.setSize(300,200); //设置面板大小，宽和高

this.setLocation(300,300); //设置面板刚开始的出现的位置

Cursor cu = new Cursor(Cursor.HAND_CURSOR); //用指定名称创建一个新的定制光标对象，参数表示手状光标类型

this.setCursor(cu); //为指定的光标设置光标图像，即设置光标图像为上面所创建的手状光标类型

this.setVisible(true); //将面板可视化设置为true，即可视，如果为false，即程序运行时面板会隐藏

tf.setText("welcome you! "); //设置面板的标题为欢迎

this.go(); //调用go方法

}

public void go(){

while(true){ //这里是死循环，也就是说用户不点击停止按钮的话他一直循环出现随机数，直到用户点击停止按钮循环才能推出，具体流程在actionPerformed方法中控制。

if(isGo == true){ //上面所定义的isGo的初始值为false，所以程序第一次到此会跳过

String s = ""; //设置空字符串

for(int j = 1; j = 7;j++){ //产生7个随机数

int i = (int)(Math.random() * 36) + 1;//每个随机数产生方式，这里定义灵活，可以自由定义随机数产生的方式

if(i 10){

s = s + " 0" + i; //如果产生的随机数小于10的话做处理：这里就牵扯到一个重要的概念，简单叙述一下：

/*

当一个字符串与一个整型数项相加的意思是连接，上面的s = s + " 0" + i的意思是字符串s链接0再连接整型i值，而不会导致0和整型的i相加，

产生的效果为s0i,由于s为空字符串（上面定义过的），所以当i小于零时，在个位数前面加上0，比如产生的随机数i为7的话，显示效果为 07.

*/

}else{

s = s + " " + i; //如果产生的随机数比10打的话，那么加上空格显示，即数字和数字之间有个空格

}

//以上循环循环七次，以保证能出现7个随机数

}

tf.setText(s); //将产生的随机数全部显示在文本域上，用文本域对象tf调用它的设置文本的方法setText(String)实现。

}

//以下为线程延迟

try{

Thread.sleep(10); //线程类同步方法sleep，睡眠方法，括号里的单位为ms。

}catch(java.lang.InterruptedException e){

e.printStackTrace(); //异常捕获，不用多说。

}

}

}

//以下是上面设置的事件监听的具体处理办法，即监听时间处理方法，自动调用

public void actionPerformed(ActionEvent e){ //传入一个动作事件的参数e

String s = e.getActionCommand(); //设置字符串s来存储获得动作监听，上面的start

/*

以下这个条件语句块的作用为：用户点击开始后（捕获start，用方法getActionCommand()），将命令触发设置为true，从而执行上面的go方法中的循环体（因为循环体中要求isGo参数为true,而初始为false）。

执行循环快产生随机数，并将开始按钮不可编辑化，而用户只可以使用停止按钮去停止。如果用户按下停止时，也就是没有传入参数“start”的时候，

执行else语句块中的语句，isGo设置为false，将不执行上面go中的循环语句块，从而停止产生随机数，并显示，并且把开始按钮设置为可用，而把

停止按钮设置为不可用，等待用户按下开始再去开始新一轮循环产生随机数。

*/

if(s.equals("start")){ //如果捕获到start，也就是用户触发了动作监听器，那么下面处理

isGo = true; //设置isGo为true

b1.setEnabled(false); //将开始按钮设置为不可用

b2.setEnabled(true); //将停止按钮设置为可用

}else{

isGo = false; //将isGo设置为false，isGo为循环标志位

b2.setEnabled(false); //设置停止按钮为不可用（注意看是b2,b2是停止按钮）

b1.setEnabled(true); //设置开始按钮为可用

}

}

public static void main(String[] args){

new GoodLucky(); //产生类的实例，执行方法

}

}

相关问答

Q1: 求java小游戏源代码

import java.applet.Applet;

import java.applet.AudioClip;

import java.awt.Dimension;

import java.awt.Font;

import java.awt.Toolkit;

import javax.sound.sampled.AudioFileFormat;

import javax.sound.sampled.AudioSystem;

import javax.swing.JFrame;

import javax.swing.JPanel;

import java.awt.Rectangle;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JOptionPane;

import javax.swing.JSlider;

import javax.swing.JLabel;

import javax.swing.SwingUtilities;

import javax.swing.UIManager;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import java.io.File;

import java.util.Vector;

public class Frame extends JFrame implements Runnable {

JPanel contentPane;

JPanel jPanel1 = new JPanel();

JButton jButton1 = new JButton();

JSlider jSlider1 = new JSlider();

JLabel jLabel1 = new JLabel();

JButton jButton2 = new JButton();

JLabel jLabel2 = new JLabel();

int count = 1, rapidity = 80; // count 当前进行的个数, rapidity 游标的位置

int zhengque = 0, cuowu = 0;

int rush[] = { 10 ,20 ,30 }; //游戏每关的个数 可以自由添加.列 { 10 ,20 ,30 ,40,50}

int rush_count = 0; //记录关数

char list[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',

'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y',

'Z', '1', '2', '3', '4', '5', '6', '7', '8', '9' }; //随机出现的数字 可以自由添加

Vector number = new Vector();

String paiduan = "true";

AudioClip Musci_anjian, Music_shibai, Music_chenggong;

public Frame() {

try {

setDefaultCloseOperation(EXIT_ON_CLOSE);

//-----------------声音文件---------------------

Musci_anjian = Applet.newAudioClip(new File("sounds//anjian.wav")

.toURL());

Music_shibai = Applet.newAudioClip(new File("sounds//shibai.wav")

.toURL());

Music_chenggong = Applet.newAudioClip(new File(

"sounds//chenggong.wav").toURL());

//---------------------------------------

jbInit();

} catch (Exception exception) {

exception.printStackTrace();

}

}

/**

* Component initialization.

*

* @throws java.lang.Exception

*/

private void jbInit() throws Exception {

contentPane = (JPanel) getContentPane();

contentPane.setLayout(null);

setSize(new Dimension(588, 530));

setTitle("Frame Title");

jPanel1.setBorder(BorderFactory.createEtchedBorder());

jPanel1.setBounds(new Rectangle(4, 4, 573, 419));

jPanel1.setLayout(null);

jButton1.setBounds(new Rectangle(277, 442, 89, 31));

jButton1.setText("开始");

jButton1.addActionListener(new Frame1_jButton1_actionAdapter(this));

jSlider1.setBounds(new Rectangle(83, 448, 164, 21));

jSlider1.setMaximum(100);

jSlider1.setMinimum(1);

jSlider1.setValue(50);

jLabel1.setText("速度");

jLabel1.setBounds(new Rectangle(35, 451, 39, 18));

jButton2.setBounds(new Rectangle(408, 442, 89, 31));

jButton2.setText("结束");

jButton2.addActionListener(new Frame1_jButton2_actionAdapter(this));

jLabel2.setText("第一关:100个");

jLabel2.setBounds(new Rectangle(414, 473, 171, 21));

contentPane.add(jPanel1);

contentPane.add(jButton2);

contentPane.add(jButton1);

contentPane.add(jSlider1);

contentPane.add(jLabel1);

contentPane.add(jLabel2);

this.addKeyListener(new MyListener());

jButton1.addKeyListener(new MyListener());

jSlider1.addKeyListener(new MyListener());

jSlider1.addChangeListener(new ChangeListener() {

public void stateChanged(ChangeEvent e) {

rapidity = jSlider1.getValue();

}

});

}

public void run() {

number.clear();

zhengque = 0;

cuowu = 0;

paiduan = "true";

while (count = rush[rush_count]) {

try {

Thread t = new Thread(new Tthread());

t.start();

count += 1;

Thread.sleep(1000 + (int) (Math.random() * 2000)); // 生产下组停顿时间

// 最快1快.最慢2秒

} catch (InterruptedException e) {

e.printStackTrace();

}

}

while (true) { // 等待最后一个字符消失

if (number.size() == 0) {

break;

}

}

if (zhengque == 0) { // 为了以后相除..如果全部正确或者错误就会出现错误. 所以..

zhengque = 1;

}

if (cuowu == 0) {

cuowu = 1;

}

if (paiduan.equals("true")) { // 判断是否是自然结束

if (zhengque / cuowu = 2) {

JOptionPane.showMessageDialog(null, "恭喜你过关了");

rush_count += 1; // 自动加1关

if (rush_count rush.length) {

if (rapidity 10) { // 当速度大于10的时候在-5提加速度.怕速度太快

rapidity -= 5; // 速度自动减10毫秒

jSlider1.setValue(rapidity); // 选择位置

}

Thread t = new Thread(this);

t.start();

} else {

JOptionPane.showMessageDialog(null, "牛B...你通关了..");

rush_count = 0;

count = 0;

}

} else {

JOptionPane.showMessageDialog(null, "请再接再励");

rush_count = 0;

count = 0;

}

} else {

rush_count = 0;

count = 0;

}

}

public void jButton1_actionPerformed(ActionEvent e) {

Thread t = new Thread(this);

t.start();

}

public void jButton2_actionPerformed(ActionEvent e) {

count = rush[rush_count] + 1;

paiduan = "flase";

}

class Tthread implements Runnable {

public void run() {

boolean fo = true;

int Y = 0, X = 0;

JLabel show = new JLabel();

show.setFont(new java.awt.Font("宋体", Font.PLAIN, 33));

jPanel1.add(show);

X = 10 + (int) (Math.random() * 400);

String parameter = list[(int) (Math.random() * list.length)] + "";

Bean bean = new Bean();

bean.setParameter(parameter);

bean.setShow(show);

number.add(bean);

show.setText(parameter);

while (fo) {

// ---------------------数字下移--------------------

show.setBounds(new Rectangle(X, Y += 2, 33, 33));

try {

Thread.sleep(rapidity);

} catch (InterruptedException e) {

e.printStackTrace();

}

if (Y = 419) {

fo = false;

for (int i = number.size() - 1; i = 0; i--) {

Bean bn = ((Bean) number.get(i));

if (parameter.equalsIgnoreCase(bn.getParameter())) {

cuowu += 1;

jLabel2.setText("正确:" + zhengque + "个,错误:" + cuowu

+ "个");

number.removeElementAt(i);

Music_shibai.play();

break;

}

}

}

}

}

}

class MyListener extends KeyAdapter {

public void keyPressed(KeyEvent e) {

String uu = e.getKeyChar() + "";

for (int i = 0; i number.size(); i++) {

Bean bean = ((Bean) number.get(i));

if (uu.equalsIgnoreCase(bean.getParameter())) {

zhengque += 1;

number.removeElementAt(i);

bean.getShow().setVisible(false);

jLabel2.setText("正确:" + zhengque + "个,错误:" + cuowu + "个");

Music_chenggong.play();

break;

}

}

Musci_anjian.play();

}

}

public static void main(String[] args) {

try {

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

} catch (Exception exception) {

exception.printStackTrace();

}

Frame frame = new Frame();

Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();

Dimension frameSize = frame.getSize();

if (frameSize.height screenSize.height) {

frameSize.height = screenSize.height;

}

if (frameSize.width screenSize.width) {

frameSize.width = screenSize.width;

}

frame.setLocation((screenSize.width - frameSize.width) / 2,

(screenSize.height - frameSize.height) / 2);

frame.setVisible(true);

}

}

class Frame1_jButton2_actionAdapter implements ActionListener {

private Frame adaptee;

Frame1_jButton2_actionAdapter(Frame adaptee) {

this.adaptee = adaptee;

}

public void actionPerformed(ActionEvent e) {

adaptee.jButton2_actionPerformed(e);

}

}

class Frame1_jButton1_actionAdapter implements ActionListener {

private Frame adaptee;

Frame1_jButton1_actionAdapter(Frame adaptee) {

this.adaptee = adaptee;

}

public void actionPerformed(ActionEvent e) {

adaptee.jButton1_actionPerformed(e);

}

}

class Bean {

String parameter = null;

JLabel show = null;

public JLabel getShow() {

return show;

}

public void setShow(JLabel show) {

this.show = show;

}

public String getParameter() {

return parameter;

}

public void setParameter(String parameter) {

this.parameter = parameter;

}

}

Q2: java编写一个“猜数”程序:该程序随机在1到1000的范围中选择一个供用户猜测的整数

Java源程序附后。

本程序的特点是：

(1) 文本框只能输入纯数字；

(2) 界面较美观；

(3) 代码可读性较好，有适当的注释；

(4) 窗体一出现就在桌面居中。

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import javax.swing.*;

public class GuessNumber {

private static final long serialVersionUID = 1L;

JFrame frame;

JTextField txtNum; //文本框

JButton btnStart; //按钮

JLabel lblPrompt;

JLabel lblMessage;

static int source = 0;

static Random rand = new Random();

public GuessNumber(){

frame = new JFrame("Guess Number");

JPanel pnl1, pnl2, pnl3, pnl4;

pnl1 = new JPanel();

pnl1.setLayout(new FlowLayout(FlowLayout.LEFT));

pnl2 = new JPanel();

pnl2.setLayout(new FlowLayout(FlowLayout.LEFT));

pnl3 = new JPanel();

pnl3.setLayout(new FlowLayout(FlowLayout.LEFT));

pnl4 = new JPanel();

pnl4.setLayout(new FlowLayout(FlowLayout.LEFT));

txtNum = new JTextField(10);

btnStart = new JButton("开始");

lblPrompt = new JLabel("htmlbodyI have a number between 1 and 1000 can you guess my number?br/Please enter your first guess./body/html");

lblMessage = new JLabel();

pnl1.add(lblPrompt);

pnl2.add(txtNum);

pnl3.add(lblMessage);

pnl4.add(btnStart);

frame.setLayout(new GridLayout(4, 1));

frame.add(pnl1);

frame.add(pnl2);

frame.add(pnl3);

frame.add(pnl4);

txtNum.addActionListener(this.new TextAction());

txtNum.addKeyListener(this.new KeyAction());

btnStart.addActionListener(this.new ButtonAction());

frame.setSize(400, 200);

frame.setVisible(true);

frame.setLocationRelativeTo(null);

frame.setResizable(false);

}

public static void main(String[] args) {

new GuessNumber();

while((source=rand.nextInt(1000))==0);

}

//按钮单击后的事件处理

class ButtonAction implements ActionListener{

@Override

public void actionPerformed(ActionEvent e) {

JButton btn = (JButton)e.getSource();

if(btn == btnStart){

while((source=rand.nextInt(1000))==0);

txtNum.setEditable(true);

}

}

}

//文本框按回车后的事件处理

class TextAction implements ActionListener{

@Override

public void actionPerformed(ActionEvent e) {

JTextField txt = (JTextField)e.getSource();

if(txt != txtNum){

return;

}

int num = Integer.parseInt(txtNum.getText());

if(num == source){

lblMessage.setText("Correct!");

txtNum.setEditable(false);

txtNum.setBackground(frame.getBackground());

}

else if(num source){

lblMessage.setText("Too High");

txtNum.setBackground(Color.red);

}

else{

lblMessage.setText("Too Low");

txtNum.setBackground(Color.blue);

}

}

}

//限制文本框只能输入数字

class KeyAction implements KeyListener{

@Override

public void keyPressed(KeyEvent e) {

}

@Override

public void keyReleased(KeyEvent e) {

}

@Override

public void keyTyped(KeyEvent e) {

int k = e.getKeyChar();

String text = ((JTextField)e.getSource()).getText();

if(!((k47 k 58) || (k==8 || k==KeyEvent.VK_PERIOD))){ //限制只能输入数字

e.setKeyChar((char)KeyEvent.VK_CLEAR);

}

if(text.length() 4){ //限制数值的长度

e.setKeyChar((char)KeyEvent.VK_CLEAR);

}

}

}

}

Q3: 一个数如果恰好等于它的因子之和，这个数就称为完数，编写一个JAVA程序1000内的所有完数

源代码如下：

#include stdio.h

main()

{

int i,j;

int sum;

for(i=1;i=1000;i++)

{

sum=0;

for(j=1;ji;j++)

{

if(i%j==0)

sum+=j;

}

if(sum==i)

{

printf("%d its factors are ",i);

for(j=1;ji;j++)

if(i%j==0)

printf("%d ",j);

}

printf("\n");

}

扩展资料

1、完全数是一些特殊的自然数，它所有的真因子即除了自身以外的约数的和即因子函数，恰好等于它本身。

2、第一个完全数是6，它有约数1、2、3、6，除去它本身6外，其余3个数相加，1＋2＋3＝6。第二个完全数是28。

3、有约数1、2、4、7、14、28，除去它本身28外，其余5个数相加，1＋2＋4 + 7 + 14＝28。后面的数是496、8128。

Q4: 求用JAVA编写俄罗斯方块游戏的源代码

俄罗斯方块——java源代码提供 import java.awt.*; import java.awt.event.*; //俄罗斯方块类 public class ERS_Block extends Frame{ public static boolean isPlay=false; public static int level=1,score=0; public static TextField scoreField,levelField; public static MyTimer timer; GameCanvas gameScr; public static void main(String[] argus){ ERS_Block ers = new ERS_Block("俄罗斯方块游戏 V1.0 Author:Vincent"); WindowListener win_listener = new WinListener(); ers.addWindowListener(win_listener); } //俄罗斯方块类的构造方法 ERS_Block(String title){ super(title); setSize(600,480); setLayout(new GridLayout(1,2)); gameScr = new GameCanvas(); gameScr.addKeyListener(gameScr); timer = new MyTimer(gameScr); timer.setDaemon(true); timer.start(); timer.suspend(); add(gameScr); Panel rightScr = new Panel(); rightScr.setLayout(new GridLayout(2,1,0,30)); rightScr.setSize(120,500); add(rightScr); //右边信息窗体的布局 MyPanel infoScr = new MyPanel(); infoScr.setLayout(new GridLayout(4,1,0,5)); infoScr.setSize(120,300); rightScr.add(infoScr); //定义标签和初始值 Label scorep = new Label("分数:",Label.LEFT); Label levelp = new Label("级数:",Label.LEFT); scoreField = new TextField(8); levelField = new TextField(8); scoreField.setEditable(false); levelField.setEditable(false); infoScr.add(scorep); infoScr.add(scoreField); infoScr.add(levelp); infoScr.add(levelField); scorep.setSize(new Dimension(20,60)); scoreField.setSize(new Dimension(20,60)); levelp.setSize(new Dimension(20,60)); levelField.setSize(new Dimension(20,60)); scoreField.setText("0"); levelField.setText("1"); //右边控制按钮窗体的布局 MyPanel controlScr = new MyPanel(); controlScr.setLayout(new GridLayout(5,1,0,5)); rightScr.add(controlScr); //定义按钮play Button play_b = new Button("开始游戏"); play_b.setSize(new Dimension(50,200)); play_b.addActionListener(new Command(Command.button_play,gameScr)); //定义按钮Level UP Button level_up_b = new Button("提高级数"); level_up_b.setSize(new Dimension(50,200)); level_up_b.addActionListener(new Command(Command.button_levelup,gameScr)); //定义按钮Level Down Button level_down_b =new Button("降低级数"); level_down_b.setSize(new Dimension(50,200)); level_down_b.addActionListener(new Command(Command.button_leveldown,gameScr)); //定义按钮Level Pause Button pause_b =new Button("游戏暂停"); pause_b.setSize(new Dimension(50,200)); pause_b.addActionListener(new Command(Command.button_pause,gameScr)); //定义按钮Quit Button quit_b = new Button("退出游戏"); quit_b.setSize(new Dimension(50,200)); quit_b.addActionListener(new Command(Command.button_quit,gameScr)); controlScr.add(play_b); controlScr.add(level_up_b); controlScr.add(level_down_b); controlScr.add(pause_b); controlScr.add(quit_b); setVisible(true); gameScr.requestFocus(); } } //重写MyPanel类，使Panel的四周留空间 class MyPanel extends Panel{ public Insets getInsets(){ return new Insets(30,50,30,50); } } //游戏画布类 class GameCanvas extends Canvas implements KeyListener{ final int unitSize = 30; //小方块边长 int rowNum; //正方格的行数 int columnNum; //正方格的列数 int maxAllowRowNum; //允许有多少行未削 int blockInitRow; //新出现块的起始行坐标 int blockInitCol; //新出现块的起始列坐标 int [][] scrArr; //屏幕数组 Block b; //对方快的引用 //画布类的构造方法 GameCanvas(){ rowNum = 15; columnNum = 10; maxAllowRowNum = rowNum - 2; b = new Block(this); blockInitRow = rowNum - 1; blockInitCol = columnNum/2 - 2; scrArr = new int [32][32]; } //初始化屏幕，并将屏幕数组清零的方法 void initScr(){ for(int i=0;irowNum;i++) for (int j=0; jcolumnNum;j++) scrArr[j]=0; b.reset(); repaint(); } //重新刷新画布方法 public void paint(Graphics g){ for(int i = 0; i rowNum; i++) for(int j = 0; j columnNum; j++) drawUnit(i,j,scrArr[j]); } //画方块的方法 public void drawUnit(int row,int col,int type){ scrArr[row][col] = type; Graphics g = getGraphics(); tch(type){ //表示画方快的方法 case 0: g.setColor(Color.black);break; //以背景为颜色画 case 1: g.setColor(Color.blue);break; //画正在下落的方块 case 2: g.setColor(Color.magenta);break; //画已经落下的方法 } g.fill3DRect(col*unitSize,getSize().height-(row+1)*unitSize,unitSize,unitSize,true); g.dispose(); } public Block getBlock(){ return b; //返回block实例的引用 } //返回屏幕数组中(row,col)位置的属性值 public int getScrArrXY(int row,int col){ if (row 0 || row = rowNum || col 0 || col = columnNum) return(-1); else return(scrArr[row][col]); } //返回新块的初始行坐标方法 public int getInitRow(){ return(blockInitRow); //返回新块的初始行坐标 } //返回新块的初始列坐标方法 public int getInitCol(){ return(blockInitCol); //返回新块的初始列坐标 } //满行删除方法 void deleteFullLine(){ int full_line_num = 0; int k = 0; for (int i=0;irowNum;i++){ boolean isfull = true; L1:for(int j=0;jcolumnNum;j++) if(scrArr[j] == 0){ k++; isfull = false; break L1; } if(isfull) full_line_num++; if(k!=0 k-1!=i !isfull) for(int j = 0; j columnNum; j++){ if (scrArr[j] == 0) drawUnit(k-1,j,0); else drawUnit(k-1,j,2); scrArr[k-1][j] = scrArr[j]; } } for(int i = k-1 ;i rowNum; i++){ for(int j = 0; j columnNum; j++){ drawUnit(i,j,0); scrArr[j]=0; } } ERS_Block.score += full_line_num; ERS_Block.scoreField.setText(""+ERS_Block.score); } //判断游戏是否结束方法 boolean isGameEnd(){ for (int col = 0 ; col columnNum; col ++){ if(scrArr[maxAllowRowNum][col] !=0) return true; } return false; } public void keyTyped(KeyEvent e){ } public void keyReleased(KeyEvent e){ } //处理键盘输入的方法 public void keyPressed(KeyEvent e){ if(!ERS_Block.isPlay) return; tch(e.getKeyCode()){ case KeyEvent.VK_DOWN:b.fallDown();break; case KeyEvent.VK_LEFT:b.leftMove();break; case KeyEvent.VK_RIGHT:b.rightMove();break; case KeyEvent.VK_SPACE:b.leftTurn();break; } } } //处理控制类 class Command implements ActionListener{ static final int button_play = 1; //给按钮分配编号 static final int button_levelup = 2; static final int button_leveldown = 3; static final int button_quit = 4; static final int button_pause = 5; static boolean pause_resume = true; int curButton; //当前按钮 GameCanvas scr; //控制按钮类的构造方法 Command(int button,GameCanvas scr){ curButton = button; this.scr=scr; } //按钮执行方法 public void actionPerformed (ActionEvent e){ tch(curButton){ case button_play:if(!ERS_Block.isPlay){ scr.initScr(); ERS_Block.isPlay = true; ERS_Block.score = 0; ERS_Block.scoreField.setText("0"); ERS_Block.timer.resume(); } scr.requestFocus(); break; case button_levelup:if(ERS_Block.level 10){ ERS_Block.level++; ERS_Block.levelField.setText(""+ERS_Block.level); ERS_Block.score = 0; ERS_Block.scoreField.setText(""+ERS_Block.score); } scr.requestFocus(); break; case button_leveldown:if(ERS_Block.level 1){ ERS_Block.level--; ERS_Block.levelField.setText(""+ERS_Block.level); ERS_Block.score = 0; ERS_Block.scoreField.setText(""+ERS_Block.score); } scr.requestFocus(); break; case button_pause:if(pause_resume){ ERS_Block.timer.suspend(); pause_resume = false; }else{ ERS_Block.timer.resume(); pause_resume = true; } scr.requestFocus(); break; case button_quit:System.exit(0); } } } //方块类 class Block { static int[][] pattern = { {0x0f00,0x4444,0x0f00,0x4444},//用十六进至表示，本行表示长条四种状态 {0x04e0,0x0464,0x00e4,0x04c4}, {0x4620,0x6c00,0x4620,0x6c00}, {0x2640,0xc600,0x2640,0xc600}, {0x6220,0x1700,0x2230,0x0740}, {0x6440,0x0e20,0x44c0,0x8e00}, {0x0660,0x0660,0x0660,0x0660} }; int blockType; //块的模式号（0-6） int turnState; //块的翻转状态（0-3） int blockState; //快的下落状态 int row,col; //块在画布上的坐标 GameCanvas scr; //块类的构造方法 Block(GameCanvas scr){ this.scr = scr; blockType = (int)(Math.random() * 1000)%7; turnState = (int)(Math.random() * 1000)%4; blockState = 1; row = scr.getInitRow(); col = scr.getInitCol(); } //重新初始化块，并显示新块 public void reset(){ blockType = (int)(Math.random() * 1000)%7; turnState = (int)(Math.random() * 1000)%4; blockState = 1; row = scr.getInitRow(); col = scr.getInitCol(); dispBlock(1); } //实现“块”翻转的方法 public void leftTurn(){ if(assertValid(blockType,(turnState + 1)%4,row,col)){ dispBlock(0); turnState = (turnState + 1)%4; dispBlock(1); } } //实现“块”的左移的方法 public void leftMove(){ if(assertValid(blockType,turnState,row,col-1)){ dispBlock(0); col--; dispBlock(1); } } //实现块的右移 public void rightMove(){ if(assertValid(blockType,turnState,row,col+1)){ dispBlock(0); col++; dispBlock(1); } } //实现块落下的操作的方法 public boolean fallDown(){ if(blockState == 2) return(false); if(assertValid(blockType,turnState,row-1,col)){ dispBlock(0); row--; dispBlock(1); return(true); }else{ blockState = 2; dispBlock(2); return(false); } } //判断是否正确的方法 boolean assertValid(int t,int s,int row,int col){ int k = 0x8000; for(int i = 0; i 4; i++){ for(int j = 0; j 4; j++){ if((int)(pattern[t][s]k) != 0){ int temp = scr.getScrArrXY(row-i,col+j); if (temp0||temp==2) return false; } k = k 1; } } return true; } //同步显示的方法 public synchronized void dispBlock(int s){ int k = 0x8000; for (int i = 0; i 4; i++){ for(int j = 0; j 4; j++){ if(((int)pattern[blockType][turnState]k) != 0){ scr.drawUnit(row-i,col+j,s); } k=k1; } } } } //定时线程 class MyTimer extends Thread{ GameCanvas scr; public MyTimer(GameCanvas scr){ this.scr = scr; } public void run(){ while(true){ try{ sleep((10-ERS_Block.level + 1)*100); } catch(InterruptedException e){} if(!scr.getBlock().fallDown()){ scr.deleteFullLine(); if(scr.isGameEnd()){ ERS_Block.isPlay = false; suspend(); }else scr.getBlock().reset(); } } } } class WinListener extends WindowAdapter{ public void windowClosing (WindowEvent l){ System.exit(0); } } 22

Q5: 求Java源代码：用Java实现输出：1000之内能被7整除的数之和。不要用for循环做题。我还没学到。嘿嘿。谢过

int i=1;

while(true){

if(i%7==0){System.out.println(i);}

i++;

if(i1000)break;

}