面向对象程序设计：农夫过河问题

农夫过河两种玩法：
1.农夫带一种东西过河
（原始玩法）
2.农夫带两种东西过河
(新增两个角色，胡萝卜，兔子，农夫不在时兔子会吃胡萝卜，狼会吃兔子)
先选择玩法：

第一种玩法的正确输入是：3123413

第二种玩法的正确步骤留给你们，下面上代码：

package ShiYan;import java.util.Scanner;
public class Cross {public static void main(String[] args) {Scanner input = new Scanner(System.in);System.out.println("请输入你想进行的游戏模式(1为传统玩法)(2为带两种东西过河)，请选择：");int Ze = input.nextInt();if (Ze == 1) {game11 game = new game11();game.play();} else if (Ze == 2) {game2 game2 = new game2();game2.play2();} else {System.out.println("输入错误！");System.exit(0);}}
}
class thing {private boolean hasCross = false;private boolean isAlive = true;public boolean isHasCross() {return hasCross;}public void setHasCross(boolean hasCross) {this.hasCross = hasCross;}public boolean isAlive() {return isAlive;}public void setAlive(boolean alive) {this.isAlive = alive;}public void showStatus() {}public void eatSheep(thing sheep, thing farmer) {}public void eatCabbage(thing cabbage, thing farmer) {}public void eatHuLuoBu(thing huLuoBu, thing farmer) {}
}class cabbage11 extends thing {public void showStatus() {System.out.println("Cabbage is alive:" + super.isAlive());System.out.println("Cabbage has Cross:" + super.isHasCross());}
}class wolf11 extends thing {String name;public wolf11(String name) {this.name = name;System.out.println("啊呜~~，我是可爱小狼仔 " + this.name + ",我又回来了！");}public void eatSheep(thing sheep, thing farmer) {if (!(sheep.isHasCross() == super.isHasCross() && farmer.isHasCross() == sheep.isHasCross())) {if ((sheep.isHasCross() == super.isHasCross()))sheep.setAlive(false);} elsesheep.setAlive(true);}public void showStatus() {System.out.println("Wolf " + this.name + " is alive  :" + super.isAlive());System.out.println("Wolf " + this.name + " has Cross  :" + super.isHasCross());}
}class farm11 extends thing {public void showStatus() {System.out.println("Farmer has Cross  :" + super.isHasCross());}
}class sheep11 extends thing {String name;public sheep11(String name) {this.name = name;System.out.println("咩咩，我是可爱的小羊 " + this.name);}public void eatCabbage(thing cabbage, thing farmer) {if (!(cabbage.isHasCross() == super.isHasCross() && farmer.isHasCross() == cabbage.isHasCross())) {if ((cabbage.isHasCross() == super.isHasCross()))cabbage.setAlive(false);} elsecabbage.setAlive(true);}public void showStatus() {System.out.println("Sheep " + this.name + " is alive :" + super.isAlive());System.out.println("Sheep " + this.name + " has Cross :" + super.isHasCross());}
}class tuZi extends thing {String name;public tuZi(String name) {this.name = name;System.out.println("我是可爱的小兔兔" + this.name);}public void eatHuLuoBu(thing huLuoBu, thing farmer) {if (!(huLuoBu.isHasCross() == super.isHasCross() && farmer.isHasCross() == huLuoBu.isHasCross())) {if ((huLuoBu.isHasCross() == super.isHasCross()))huLuoBu.setAlive(false);elsehuLuoBu.setAlive(true);}}public void showStatus() {System.out.println("tuZi " + this.name + " is alive :" + super.isAlive());System.out.println("tuZi " + this.name + " has Cross :" + super.isHasCross());}
}class huLuoBu extends thing {public void showStatus() {System.out.println("huLuoBu is alive:" + super.isAlive());System.out.println("huLuoBu has Cross:" + super.isHasCross());}
}class boat11 {void boat(thing s) {s.setHasCross(!s.isHasCross());}void boat1(thing s1, thing s2) {s1.setHasCross(!s1.isHasCross());s2.setHasCross(!s2.isHasCross());}void boat2(thing a1, thing a2, thing a3) {a1.setHasCross(!a1.isHasCross());a2.setHasCross(!a2.isHasCross());a3.setHasCross(!a3.isHasCross());}
}class gamegui11 {public static void menu() {/* 显示菜单 */System.out.println("==================Please choose operation============");System.out.println("\t==========1:Cross the river alone===========");System.out.println("\t==========2:Cross the river with wolf=========");System.out.println("\t==========3:Cross the river with sheep============");System.out.println("\t==========4:Cross the river with cabbage==========");System.out.println("\t==========0:Quit===============");System.out.println("===================================================");System.out.println("Input the number(0~4):");}public static void showStatus(thing farmer, thing wolf, thing sheep, thing cabbage) {farmer.showStatus();wolf.showStatus();sheep.showStatus();cabbage.showStatus();}
}class game11 {thing wolf;thing sheep;thing cabbage;thing farmer;boat11 boat;game11() {wolf = new wolf11("jack");sheep = new sheep11("nancy");cabbage = new cabbage11();farmer = new farm11();boat = new boat11();}void play() {Scanner input = new Scanner(System.in);int choice = 0;            //用户输入选择boolean gameOver = false,//游戏结束标志，默认为false，代表游戏进行中，未结束win = false;     //游戏输赢标志，默认为false，代表未赢得游戏。while (!gameOver) {gamegui11.menu();               /错误原因：无法从 static 上下文引用非static方法menu()choice = input.nextInt();       ///所以将menu（）改为static类型switch (choice) {case 0:System.out.println("Quit");System.exit(0);break;case 1:/* 农夫独自过河的处理 */boat.boat(farmer);break;case 2:/* 农夫带狼的处理 */boat.boat1(farmer, wolf);break;case 3:/* 农夫带羊的处理 */boat.boat1(farmer, sheep);break;case 4:/* 农夫带白菜的处理 */boat.boat1(farmer, cabbage);break;}wolf.eatSheep(sheep, farmer);//狼吃羊，如果羊不在同一边，则吃不到，如果在同一边，羊被吃sheep.eatCabbage(cabbage, farmer);//同上gamegui11.showStatus(farmer, wolf, sheep, cabbage);gameOver = isGameOver();}win = this.hasWin();if (win) {System.out.println("game over: you win !");} else {System.out.println("game over: you lose !");}input.close();}public boolean isGameOver() {if (sheep.isAlive() == false || cabbage.isAlive() == false) {return true;}if (wolf.isHasCross() && sheep.isHasCross() && cabbage.isHasCross()) {return true;}return false;}public boolean hasWin() {if (sheep.isAlive() == false || cabbage.isAlive() == false) {return false;}if (wolf.isHasCross() && sheep.isHasCross() && cabbage.isHasCross()) {return true;} else {return false;}}
}class game2 {thing wolf;thing sheep;thing cabbage;thing farmer;thing tuZi;thing huLuoBu;boat11 boat;game2() {wolf = new wolf11("yueHan");tuZi = new tuZi("KaKa");sheep = new sheep11("Cindy");huLuoBu = new huLuoBu();cabbage = new cabbage11();farmer = new farm11();boat = new boat11();}void play2() {Scanner input = new Scanner(System.in);int choice = 0;            //用户输入选择boolean gameOver2 = false,//游戏结束标志，默认为false，代表游戏进行中，未结束win2 = false;     //游戏输赢标志，默认为false，代表未赢得游戏。while (!gameOver2) {gamegui2.menu();               /错误原因：无法从 static 上下文引用非static方法menu()choice = input.nextInt();       ///所以将menu（）改为static类型switch (choice) {case 0:System.out.println("Quit");System.exit(0);break;case 1:/* 农夫独自过河的处理 */boat.boat(farmer);break;case 2:/* 农夫带狼的处理 */boat.boat1(farmer, wolf);break;case 3:/* 农夫带羊的处理 */boat.boat1(farmer, sheep);break;case 4:/* 农夫带白菜的处理 */boat.boat1(farmer, cabbage);break;case 5://带兔子过河boat.boat1(tuZi, farmer);break;case 6://带胡萝卜过河boat.boat1(huLuoBu, farmer);break;case 7:boat.boat2(wolf, sheep, farmer);break;case 8:boat.boat2(wolf, cabbage, farmer);break;case 9:boat.boat2(wolf, tuZi, farmer);break;case 10:boat.boat2(wolf, huLuoBu, farmer);break;case 11:boat.boat2(cabbage, sheep, farmer);break;case 12:boat.boat2(tuZi, sheep, farmer);break;case 13:boat.boat2(huLuoBu, sheep, farmer);break;case 14:boat.boat2(cabbage, tuZi, farmer);break;case 15:boat.boat2(cabbage, huLuoBu, farmer);break;case 16:boat.boat2(tuZi, huLuoBu, farmer);break;}wolf.eatSheep(sheep, farmer);        //狼吃羊，如果羊不在同一边，则吃不到，如果在同一边，羊被吃sheep.eatCabbage(cabbage, farmer);sheep.eatCabbage(huLuoBu, farmer);//同上tuZi.eatHuLuoBu(huLuoBu, farmer);wolf.eatSheep(tuZi, farmer);         //狼吃兔子gamegui2.showStatus(farmer, wolf, sheep, cabbage, tuZi, huLuoBu);gameOver2 = isGameOver2();}win2 = this.hasWin2();if (win2) {System.out.println("game over: you win !");} else {System.out.println("game over: you lose !");}input.close();}public boolean isGameOver2() {if (sheep.isAlive() == false || cabbage.isAlive() == false || tuZi.isAlive() == false || huLuoBu.isAlive() == false) {return true;}if (wolf.isHasCross() && sheep.isHasCross() && cabbage.isHasCross() && tuZi.isHasCross() && huLuoBu.isHasCross()) {return true;}return false;}public boolean hasWin2() {if (sheep.isAlive() == false || cabbage.isAlive() == false || tuZi.isAlive() == false || huLuoBu.isAlive() == false) {return false;}if (wolf.isHasCross() && sheep.isHasCross() && cabbage.isHasCross() && tuZi.isHasCross() && huLuoBu.isHasCross()) {return true;} else {return false;}}
}class gamegui2 {public static void menu() {/* 显示菜单 */System.out.println("==================Please choose operation============");System.out.println("\t==========1:Cross the river alone===========");System.out.println("\t==========2:Cross the river with wolf=========");System.out.println("\t==========3:Cross the river with sheep============");System.out.println("\t==========4:Cross the river with cabbage==========");System.out.println("\t==========5:Cross the river with tuZi==========");System.out.println("\t==========6:Cross the river with huLuoBu==========");System.out.println("\t==========7:Cross the river with wolf and sheep=========");System.out.println("\t==========8:Cross the river with wolf and cabbage=========");System.out.println("\t==========9:Cross the river with wolf and tuZi=========");System.out.println("\t==========10:Cross the river with wolf and huLuoBu=========");System.out.println("\t==========11:Cross the river with sheep and cabbage============");System.out.println("\t==========12:Cross the river with sheep and tuZi============");System.out.println("\t==========13:Cross the river with sheep and huLuoBu============");System.out.println("\t==========14:Cross the river with cabbage and tuZi==========");System.out.println("\t==========15:Cross the river with cabbage and huLuoBu==========");System.out.println("\t==========16:Cross the river with tuZi and huLuoBU==========");System.out.println("\t==========0:Quit===============");System.out.println("===================================================");System.out.println("Input the number(0~16):");}public static void showStatus(thing farmer, thing wolf, thing sheep, thing cabbage, thing tiZi, thing huLuoBu) {farmer.showStatus();wolf.showStatus();sheep.showStatus();cabbage.showStatus();tiZi.showStatus();huLuoBu.showStatus();}
}

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