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java狼推羊源代码 狼吃羊代码

IT技术String

农夫过河问题(java)这个是偶写的 你可以参考下 写的有点多 你自己优化下吧 之前还不知道农夫过河是啥意思 不过后来知道了 如果有问题的话可以马上说的 你的50分偶要定咯?。?可以直接运行)
import java.util.Iterator;
import java.util.LinkedList;
public class AcrossTheRiver {
// 定义三个String对象
public static final String rabbitName = "Rabbit";
public static final String wolfName = "Wolf";
public static final String cabbageName = "Cabbage";
// 判断两个货物之间关系是否友好 写的麻烦了一点= =..
public static boolean isFriendly(Goods goods1, Goods goods2) {
if (goods1 != null) {
if (goods1.getGoodsName().trim().equals(rabbitName)) {
if (goods2 == null) {
return true;
} else {
return false;
}
} else if (goods1.getGoodsName().trim().equals(wolfName)) {
if (goods2 == null || goods2.getGoodsName().trim().equals(cabbageName)) {
return true;
} else {
return false;
}
} else if (goods1.getGoodsName().trim().equals(cabbageName)) {
if (goods2 == null || goods2.getGoodsName().trim().equals(wolfName)) {
return true;
} else {
return false;
}
} else {
return false;
}
} else {
return true;
}
}
// 我就直接写在主方法里了
public static void main(String[] args) {
boolean isSuccess = false;
LinkedListGoods beforeCrossing = new LinkedListGoods();
LinkedListGoods afterCrossing = new LinkedListGoods();
beforeCrossing.add(new Goods(rabbitName));
beforeCrossing.add(new Goods(cabbageName));
beforeCrossing.add(new Goods(wolfName));
while (!isSuccess) {
Goods goods1 = beforeCrossing.getFirst();
System.out.println(goods1.getGoodsName() + " 被取走了");
beforeCrossing.removeFirst();
if (beforeCrossing.isEmpty()) {
afterCrossing.addLast(goods1);
isSuccess = true;
System.out.println("全部移动完毕！");
} else {
IteratorGoods it = beforeCrossing.iterator();
Goods[] beforeCro = new Goods[2];
for (int i = 0; it.hasNext(); i++) {
beforeCro[i] = it.next();
System.out.println(beforeCro[i].getGoodsName() + " 留了下来");
}
if (isFriendly(beforeCro[0], beforeCro[1])) {
if (afterCrossing.isEmpty()) {
afterCrossing.addLast(goods1);
System.out.println(goods1.getGoodsName() + " 被成功的放到了对岸");
} else {
Goods goods2 = afterCrossing.getFirst();
if (isFriendly(goods1, goods2)) {
afterCrossing.addLast(goods1);
System.out.println(goods1.getGoodsName() + " 被成功的放到了对岸");
} else {
beforeCrossing.addLast(goods2);
afterCrossing.removeFirst();
System.out.println(goods1.getGoodsName() + " 与 "
+ goods2.getGoodsName() + "并不和睦 于是把 " + goods2.getGoodsName()
+ "带了回来 并将 " + goods1.getGoodsName() + " 留了下来");
}
}
} else {
beforeCrossing.addLast(goods1);
System.out.println("很可惜 留下来的两个东西并不和睦 于是 " + goods1.getGoodsName()
+ " 又被放了回去");
}
}
}
}
}
// 货物类
class Goods {
// 货物名称
private String goodsName;
// 默认构造方法
public Goods(String goodsName) {
this.goodsName = goodsName;
}
// 获得货物名称
public String getGoodsName() {
return goodsName;
}
}
JAVA:编写一个动物的继承关系代码.下面是一个简单的 Java 程序示例 ， 用于实现山羊和狼的继承关系，并在测试类中进行验证：
Animal.java:
```java
public abstract class Animal {
public void walk() {
System.out.println("走路");
}
public abstract void eat();

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