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分析业务,抽象出类、类的特征和行为
创建用户类




/**
*
* @author wangshaohua
*
*/
public class Person {
String name = "匿名"; // 名字
int score = 0; // 积分
/**
* 出拳
*
* @return 出拳结果:1.剪刀 2.石头 3.布
*/
public int showFist() {
// 接收用户的选择
Scanner input = new Scanner(System.in);
System.out.print("\n请出拳:1.剪刀 2.石头 3.布 (输入相应数字) :");
int show = input.nextInt();
// 输出出拳结果,并返回
switch (show) {
case 1:
System.out.println("你出拳: 剪刀");
break;
case 2:
System.out.println("你出拳: 石头");
break;
case 3:
System.out.println("你出拳: 布");
break;
}
return show;
}
}
/*** 人机互动版猜拳游戏* 阶段1:测试用户出拳**/public class TestPerson {public static void main(String[] args) {Person person = new Person();System.out.println(person.showFist());}}

/*** 计算机类* 阶段2完成*/public class Computer {String name = "电脑"; // 名字int score = 0;; // 积分/*** 出拳* @return 出拳结果:1.剪刀 2.石头 3.布*/public int showFist(){// 产生随机数int show = (int)(Math.random()*10)%3 + 1; //产生随机数,表示电脑出拳// 输出出拳结果并返回switch(show){case 1:System.out.println(name+"出拳: 剪刀");break;case 2:System.out.println(name+"出拳: 石头");break;case 3:System.out.println(name+"出拳: 布");break;}return show;}}
/*** 人机互动版猜拳游戏* 阶段2:测试电脑出拳*/public class TestComputer {public static void main(String[] args) {Computer computer = new Computer();System.out.println(computer.showFist());}}

/*** 游戏类*/public class Game1 {Person person; //甲方Computer computer; //乙方int count; //对战次数/*** 初始化*/public void initial(){person = new Person();computer = new Computer();count = 0;}/*** 开始游戏*/public void startGame() {initial();System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------\n");System.out.println("\n\t\t******************");System.out.println ("\t\t** 猜拳, 开始 **");System.out.println ("\t\t******************");System.out.println("\n\n出拳规则:1.剪刀 2.石头 3.布");/*选择对方角色*/System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");Scanner input = new Scanner(System.in);int role = input.nextInt();if(role == 1){computer.name = "刘备";}else if(role == 2){computer.name = "孙权";}else if(role == 3){computer.name = "曹操";}System.out.print("你选择了"+computer.name+"对战");}}
/*** 人机互动版猜拳游戏* 阶段3:测试开始游戏:选择对战角色*/public class TestGame1 {public static void main(String[] args) {Game1 game = new Game1();game.startGame();}}
分别调用用户类和计算机类的出拳方法showFist(),接受返回值并比较,给出胜负结果
/*** 游戏类* 阶段4:实现一局对战*/public class Game2 {Person person; //甲方Computer computer; //乙方int count; //对战次数/*** 初始化*/public void initial(){person = new Person();computer = new Computer();count = 0;}/*** 开始游戏*/public void startGame() {initial(); // 初始化System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------\n");System.out.println("\n\t\t******************");System.out.println ("\t\t** 猜拳, 开始 **");System.out.println ("\t\t******************");System.out.println("\n\n出拳规则:1.剪刀 2.石头 3.布");/*选择对方角色*/System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");Scanner input = new Scanner(System.in);int role = input.nextInt();if(role == 1){computer.name = "刘备";}else if(role == 2){computer.name = "孙权";}else if(role == 3){computer.name = "曹操";}System.out.println("你选择了 "+computer.name+"对战");/*开始游戏*/System.out.print("\n要开始吗?(y/n) ");String con = input.next();int perFist; //用户出的拳int compFist; //计算机出的拳if(con.equals("y")){/*出拳*/perFist = person.showFist();compFist = computer.showFist();/*裁决*/if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){System.out.println("结果:和局,真衰!\n"); //平局}else if((perFist == 1 && compFist == 3) || (perFist == 2 && compFist == 1) || (perFist == 3 && compFist == 2)){System.out.println("结果: 恭喜, 你赢了!"); //用户赢}else{System.out.println("结果说:^_^,你输了,真笨!\n"); //计算机赢}}}}
/*** 人机互动版猜拳游戏* 阶段4:测试开始游戏:实现1局对战*/public class TestGame2 {public static void main(String[] args) {Game2 game = new Game2();game.startGame();}}
实现循环对战,

/*** 游戏类* 阶段5:实现循环对战**/public class Game3 {Person person; //甲方Computer computer; //乙方int count; //对战次数/*** 初始化*/public void initial(){person = new Person();computer = new Computer();count = 0;}/*** 开始游戏*/public void startGame() {initial(); // 初始化System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------\n");System.out.println("\n\t\t******************");System.out.println ("\t\t** 猜拳, 开始 **");System.out.println ("\t\t******************");System.out.println("\n\n出拳规则:1.剪刀 2.石头 3.布");/*选择对方角色*/System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");Scanner input = new Scanner(System.in);int role = input.nextInt();if(role == 1){computer.name = "刘备";}else if(role == 2){computer.name = "孙权";}else if(role == 3){computer.name = "曹操";}System.out.println("你选择了 "+computer.name+"对战");/*开始游戏*/System.out.print("\n要开始吗?(y/n) ");String con = input.next();int perFist; //用户出的拳int compFist; //计算机出的拳while(con.equals("y")){/*出拳*/perFist = person.showFist();compFist = computer.showFist();/*裁决*/if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){System.out.println("结果:和局,真衰!嘿嘿,等着瞧吧 !\n"); //平局}else if((perFist == 1 && compFist == 3) || (perFist == 2 && compFist == 1) || (perFist == 3 && compFist == 2)){System.out.println("结果: 恭喜, 你赢了!"); //用户赢person.score++;}else{System.out.println("结果说:^_^,你输了,真笨!\n"); //计算机赢computer.score++;}count++;System.out.print("\n是否开始下一轮(y/n): ");con = input.next();}}}
public class TestGame3 {public static void main(String[] args) {Game3 game = new Game3();game.startGame();}}
游戏结束后,显示对战结果

/*** 游戏类* 阶段6:实现对战结果显示*/public class Game4 {Person person; //甲方Computer computer; //乙方int count; //对战次数/*** 初始化*/public void initial(){person = new Person();computer = new Computer();count = 0;}/*** 开始游戏*/public void startGame() {initial(); // 初始化System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------\n");System.out.println("\n\t\t******************");System.out.println ("\t\t** 猜拳, 开始 **");System.out.println ("\t\t******************");System.out.println("\n\n出拳规则:1.剪刀 2.石头 3.布");/*选择对方角色*/System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");Scanner input = new Scanner(System.in);int role = input.nextInt();if(role == 1){computer.name = "刘备";}else if(role == 2){computer.name = "孙权";}else if(role == 3){computer.name = "曹操";}System.out.println("你选择了 "+computer.name+"对战");System.out.print("\n要开始吗?(y/n) ");String con = input.next();int perFist; //用户出的拳int compFist; //计算机出的拳while(con.equals("y")){/*出拳*/perFist = person.showFist();compFist = computer.showFist();/*裁决*/if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){System.out.println("结果:和局,真衰!嘿嘿,等着瞧吧 !\n"); //平局}else if((perFist == 1 && compFist == 3) || (perFist == 2 && compFist == 1) || (perFist == 3 && compFist == 2)){System.out.println("结果: 恭喜, 你赢了!"); //用户赢person.score++;}else{System.out.println("结果说:^_^,你输了,真笨!\n"); //计算机赢computer.score++;}count++;System.out.print("\n是否开始下一轮(y/n): ");con = input.next();}/*显示结果*/showResult();}/*** 显示比赛结果*/public void showResult(){/*显示最后结果*/System.out.println("---------------------------------------------------");System.out.println(computer.name + " VS " + person.name);System.out.println("对战次数:"+ count);int result = calcResult();if(result == 1){System.out.println("结果:打成平手,下次再和你一分高下!");}else if(result == 2){System.out.println("结果:恭喜恭喜!"); //用户获胜}else{System.out.println("结果:呵呵,笨笨,下次加油啊!"); //计算机获胜}System.out.println("---------------------------------------------------");}/*** 计算比赛结果* @return 1:战平;2:用户赢;3:电脑赢*/public int calcResult(){if(person.score == computer.score){return 1; // 战平}else if(person.score > computer.score){return 2; // 用户赢}else{return 3; // 电脑赢}}}
public class TestGame4 {/*** 人机互动版猜拳游戏*/public static void main(String[] args) {Game4 game = new Game4();game.initial();game.startGame();}}
输入并保存用户姓名,游戏结束后显示双方的各自得分

public class Game {Person person; //甲方Computer computer; //乙方int count; //对战次数/*** 初始化*/public void initial(){person = new Person();computer = new Computer();count = 0;}/*** 开始游戏*/public void startGame() {System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------");System.out.println("\n\t\t******************");System.out.println ("\t\t** 猜拳, 开始 **");System.out.println ("\t\t******************");System.out.println("\n出拳规则:1.剪刀 2.石头 3.布");Scanner input = new Scanner(System.in);String exit = "n"; // 退出系统do{initial(); // 初始化/*选择对方角色*/System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");int role = input.nextInt();if(role == 1){computer.name = "刘备";}else if(role == 2){computer.name = "孙权";}else if(role == 3){computer.name = "曹操";}// 扩展功能1:输入用户姓名/*输入用户姓名*/System.out.print("请输入你的姓名:");person.name = input.next();System.out.println(person.name+" VS "+computer.name+" 对战\n");// 扩展功能1结束System.out.print("要开始吗?(y/n) ");String start = input.next(); // 开始每一局游戏int perFist; //用户出的拳int compFist; //计算机出的拳while(start.equals("y")){/*出拳*/perFist = person.showFist();compFist = computer.showFist();/*裁决*/if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){System.out.println("结果:和局,真衰!嘿嘿,等着瞧吧 !\n"); //平局}else if((perFist == 1 && compFist == 3) || (perFist == 2 && compFist == 1) || (perFist == 3 && compFist == 2)){System.out.println("结果: 恭喜, 你赢了!"); //用户赢person.score++;}else{System.out.println("结果说:^_^,你输了,真笨!\n"); //计算机赢computer.score++;}count++;System.out.print("\n是否开始下一轮(y/n): ");start = input.next();}/*显示结果*/showResult();// 扩展功能3:循环游戏,直到退出系统System.out.print("\n要开始下一局吗?(y/n):");exit = input.next();System.out.println();// 扩展功能3结束}while(!exit.equals("n"));System.out.println("系统退出!");}/*** 显示比赛结果*/public void showResult(){/*显示对战次数*/System.out.println("---------------------------------------------------");System.out.println(computer.name + " VS " + person.name);System.out.println("对战次数:"+ count);// 扩展功能2:显示最终的得分System.out.println("\n姓名\t得分");System.out.println(person.name+"\t"+person.score);System.out.println(computer.name+"\t"+computer.score+"\n");// 扩展功能2结束/*显示对战结果*/int result = calcResult();if(result == 1){System.out.println("结果:打成平手,下次再和你一分高下!");}else if(result == 2){System.out.println("结果:恭喜恭喜!"); //用户获胜}else{System.out.println("结果:呵呵,笨笨,下次加油啊!"); //计算机获胜}System.out.println("---------------------------------------------------");}/*** 计算比赛结果* @return 1:战平;2:用户赢;3:电脑赢*/public int calcResult(){if(person.score == computer.score){return 1; // 战平}else if(person.score > computer.score){return 2; // 用户赢}else{return 3; // 电脑赢}}}
/*** 人机互动版猜拳游戏* 程序入口*/public class StartGuess {public static void main(String[] args) {Game game = new Game();game.startGame();}}
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原文地址:http://www.cnblogs.com/mentorStudio/p/4729909.html