java经典代码100行的简单介绍

悬赏50.求一个JAVA游戏的代码，100行左右，要求每行都有相应的解释。用了什么类，什么方法。要自己写的。

好的

我帮你写一个猜拳游戏

import java.util.Random;

import java.util.Scanner;

public class Test {

String[] array = new String[] { "布", "剪刀", "石头" };// 选项

Random r = new Random();//得到随机对象

private int player = 0;// 玩家获胜数

private int computer = 0;// 电脑获胜数

private int count = 0;//盘数

/**

* 比较方法

*

* @param i

*/

private void compare(int i) {

count++;//盘数+1

System.out.print("玩家:" + array[i - 1] + "\t");//打印出玩家的选择

int k = r.nextInt(3);//随机数

System.out.print("电脑:" + array[k] + "\t");//打印出电脑的选择

if (i - 1 == k) {//如果选择相等

System.out.println("打平");

} else if (i - 1 - k == 1 || i - 1 - k == -2) {//如果玩家获胜

System.out.println("玩家获胜");

player++;//玩家获胜数加1

} else {//如果电脑获胜

System.out.println("电脑获胜");

computer++;//电脑获胜数加1

}

}

/**

* 输出方法

*/

private void info() {

System.out.println("共" + count + "盘");//打印

System.out.println("玩家获胜" + player + "盘");//打印

System.out.println("电脑获胜" + computer + "盘");//打印

System.out.println("打平" + (count - player - computer) + "盘");//打印

}

/**

* 开始方法

*/

public void start() {

String again = "";// 是否继续

Scanner scanner = new Scanner(System.in);// 得到输入对象

do {

System.out.println("请选择:\n1.布\n2.剪刀\n3.石头\n结束请输入exit");// 打印

again = scanner.next();// 接收是否继续的字符串

if (again.equalsIgnoreCase("exit")) {// 如果不是EXIT

info();//打印

break;//跳出循环

}

if (!again.equals("1") !again.equals("2") !again.equals("3")) {

System.out.println("选择错误,请重新选择");

continue;

}

compare(Integer.parseInt(again));

} while (!again.equals("exit"));

}

/**

* @param args

*/

public static void main(String[] args) {

new Test().start();// 游戏开始

}

}

相关问答

Q1: 求个简单点的Java程序 100行左右。 需要解释。

贪吃蛇游戏 望采纳

import java.awt.Button;

import java.awt.Color;

import java.awt.GridLayout;

import java.awt.Point;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.util.*;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

public class Snake extends JFrame implements KeyListener{

int Count=0;

Button[][] grid = new Button[20][20];

ArrayListPoint snake_list=new ArrayListPoint();

Point bean=new Point(-1,-1);//保存随机豆子【坐标】

int Direction = 1; //方向标志 1:上 2:下 3:左 4:右

//构造方法

public Snake()

{

//窗体初始化

this.setBounds(400,300,390,395);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

GridLayout f=new GridLayout(20,20);

this.getContentPane().setBackground(Color.gray);

this.setLayout(f);

//初始化20*20个按钮

for(int i=0;i20;i++)

for(int j=0;j20;j++)

{

grid[i][j]=new Button();

this.add(grid[i][j]);

grid[i][j].setVisible(false);

grid[i][j].addKeyListener(this);

grid[i][j].setBackground(Color.blue);

}

//蛇体初始化

grid[10][10].setVisible(true);

grid[11][10].setVisible(true);

grid[12][10].setVisible(true);

grid[13][10].setVisible(true);

grid[14][10].setVisible(true);

//在动态数组中保存蛇体按钮坐标【行列】信息

snake_list.add(new Point(10,10));

snake_list.add(new Point(11,10));

snake_list.add(new Point(12,10));

snake_list.add(new Point(13,10));

snake_list.add(new Point(14,10));

this.rand_bean();

this.setTitle("总分：0");

this.setVisible(true);

}

//该方法随机一个豆子，且不在蛇体上，并使豆子可见

public void rand_bean(){

Random rd=new Random();

do{

bean.x=rd.nextInt(20);//行

bean.y=rd.nextInt(20);//列

}while(snake_list.contains(bean));

grid[bean.x][bean.y].setVisible(true);

grid[bean.x][bean.y].setBackground(Color.red);

}

//判断拟增蛇头是否与自身有碰撞

public boolean is_cross(Point p){

boolean Flag=false;

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

if(p.equals(snake_list.get(i) )){

Flag=true;break;

}

}

return Flag;

}

//判断蛇即将前进位置是否有豆子，有返回true，无返回false

public boolean isHaveBean(){

boolean Flag=false;

int x=snake_list.get(0).x;

int y=snake_list.get(0).y;

Point p=null;

if(Direction==1)p=new Point(x-1,y);

if(Direction==2)p=new Point(x+1,y);

if(Direction==3)p=new Point(x,y-1);

if(Direction==4)p=new Point(x,y+1);

if(bean.equals(p))Flag=true;

return Flag;

}

//前进一格

public void snake_move(){

if(isHaveBean()==true){//////////////有豆子吃

Point p=new Point(bean.x,bean.y);//【很重要，保证吃掉的是豆子的复制对象】

snake_list.add(0,p); //吃豆子

grid[p.x][p.y].setBackground(Color.blue);

this.Count++;

this.setTitle("总分："+Count);

this.rand_bean(); //再产生一个豆子

}else{///////////////////无豆子吃

//取原蛇头坐标

int x=snake_list.get(0).x;

int y=snake_list.get(0).y;

//根据蛇头坐标推算出拟新增蛇头坐标

Point p=null;

if(Direction==1)p=new Point(x-1,y);//计算出向上的新坐标

if(Direction==2)p=new Point(x+1,y);//计算出向下的新坐标

if(Direction==3)p=new Point(x,y-1);//计算出向左的新坐标

if(Direction==4)p=new Point(x,y+1);//计算出向右的新坐标

//若拟新增蛇头碰壁，或缠绕则游戏结束

if(p.x0||p.x19|| p.y0||p.y19||is_cross(p)==true){

JOptionPane.showMessageDialog(null, "游戏结束！");

System.exit(0);

}

//向蛇体增加新的蛇头坐标,并使新蛇头可见

snake_list.add(0,p);

grid[p.x][p.y].setVisible(true);

//删除原蛇尾坐标，使蛇尾不可见

int x1=snake_list.get(snake_list.size()-1).x;

int y1=snake_list.get(snake_list.size()-1).y;

grid[x1][y1].setVisible(false);

snake_list.remove(snake_list.size()-1);

}

}

@Override

public void keyPressed(KeyEvent e) {

if(e.getKeyCode()==KeyEvent.VK_UP Direction!=2) Direction=1;

if(e.getKeyCode()==KeyEvent.VK_DOWN Direction!=1) Direction=2;

if(e.getKeyCode()==KeyEvent.VK_LEFT Direction!=4) Direction=3;

if(e.getKeyCode()==KeyEvent.VK_RIGHT Direction!=3) Direction=4;

}

@Override

public void keyReleased(KeyEvent e) { }

@Override

public void keyTyped(KeyEvent e) { }

public static void main(String[] args) throws InterruptedException {

Snake win=new Snake();

while(true){

win.snake_move();

Thread.sleep(300);

}

}

}

Q2: 求一个简单的JAVA游戏代码，100行左右，谢谢！

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class Painter extends JFrame{

/**

*

*/

private static final long serialVersionUID = 8160427604782702376L;

CanvasPanel canvas = new CanvasPanel();;

public Painter() {

super("Star");

this.add(canvas);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.pack();

this.setResizable(false);

this.setLocationRelativeTo(null);

this.setVisible(true);

}

public static void main(String[] args) {

new Painter();

}

}

class CanvasPanel extends JPanel implements ActionListener{

/**

*

*/

private static final long serialVersionUID = -4642528854538741028L;

private JButton[] btn = new JButton[4];

private String[] btn_name = {"+", "-", "R", "L"};

private int center_x = 200, center_y = 200, radius = 100, degree = 0;

public CanvasPanel() {

this.setPreferredSize(new Dimension(400, 500));

this.setLayout(null);

for(int i = 0; i 4; i++) {

btn[i] = new JButton(btn_name[i]);

btn[i].setBounds(160 + i * 60, 425, 50, 50);

btn[i].addActionListener(this);

this.add(btn[i]);

}

}

@Override

public void paintComponent(Graphics g) {

super.paintComponent(g);

for(int i = 0; i 5; i++) {

g.drawLine( (int) (center_x + radius * Math.sin(Math.toRadians(degree + 72 * i))),

(int) (center_y - radius * Math.cos(Math.toRadians(degree + 72 * i))),

(int) (center_x + radius * Math.sin(Math.toRadians(degree + 72 * i + 144))),

(int) (center_y - radius * Math.cos(Math.toRadians(degree + 72 * i + 144))));

}

}

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

if(e.getActionCommand() == "+") {

if(radius 200)

radius += 2;

repaint();

} else if(e.getActionCommand() == "-") {

if(radius 0)

radius -= 2;

repaint();

} else if(e.getActionCommand() == "R") {

degree = (degree + 2) % 360;

repaint();

} else if(e.getActionCommand() == "L") {

degree = (degree - 2) % 360;

repaint();

}

}

}

Q3: java程序100行

package soyea.base.util;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

import java.util.Arrays;

import java.util.List;

import soyea.base.bean.physics.ChargeSite;

/**

* 反射类java经典代码100行，获取对象属性值java经典代码100行，设置对象属性值等操作

*/

public class ClassReflect {

/**

* 用于获取指定对象不确定属性名java经典代码100行的值 反射机制

* @param object 实体对象

* @param str 属性名

* @return 属性值

* @throws Exception

*/

public static Object get(Object object,String str) throws Exception {

Field field = hasEqualsIgnoreCase(object.getClass(),str);

if(field != null){

Method m = object.getClass().getMethod("get"+getMethodName(str));

Object invoke = m.invoke(object);

if(invoke == null){

return null;

}else{

return invoke.toString();

}

}else{

return null;

}

}

/**

* 设置对象属性

* @param object

* @param str

* @return

* @throws Exception

*/

public static void set(Object object,String property,Object value) throws Exception {

Field field = hasEqualsIgnoreCase(object.getClass(),property) ;

if(field != null){

Method m = object.getClass().getDeclaredMethod("set"+getMethodName(property),field.getType());

if(value!=null){

m.invoke(object,value);

}

}

}

/**

* @param clz 类文件

* @param str 类中的属性名

* @return 属性在liest中的下标

* @throws Exception

*/

public static Field hasEqualsIgnoreCase(Class? clz,String str) throws Exception{

ListField fields = Arrays.asList(clz.getDeclaredFields());

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

Field x = fields.get(i);

if(str.equalsIgnoreCase(x.getName().toString())){

return x;

}

}

return null;

}

/**

* 大写第一个字母

* @param str 字段名

* @return

* @throws Exception

*/

public static String getMethodName(String str) throws Exception{

byte[] b = str.getBytes();

b[0]=(byte)((char)b[0]-'a'+'A');

return new String(b);

}

public static void resetObj(Object obj, String property)

throws Exception {

String gbk = Encoder.getByCode(obj, property);

if(gbk != null gbk.trim().length()0){

try {

ClassReflect.set(obj, property, gbk);

} catch (Exception e) {

e.printStackTrace();

}

}

}

public static void resetAllObjPropertiesByCode(Object obj)

throws Exception {

Field[] fields = obj.getClass().getDeclaredFields();

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

Field f = fields[i];

String name = f.getName();

if("id".equals(name)){

continue;

}

resetObj(obj, name);

}

}

}

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