类：实验3共饮同井水

实验要求：编写程序模拟两个村庄共用同一口井水。编写一个Village类，该类有一个静态的int型成员变量waterAmout，用于模拟井水的水量。在主类Land的main（）方法中创建两个村庄，一个村庄改变了waterAmount的值，另一个村庄查看waterAmount的值。

class Village{
	static int waterAmount;
	String name;
	int peopleNumber;
	int water_used;
	Village(String temp, int temp_num){
		peopleNumber=temp_num;
		name=temp;}
	static int lookwaterAmout(){
		return waterAmount;}
	void drinkwater(int temp){
		if(temp <= waterAmount){
			waterAmount-=temp;
			water_used+=temp;
			System.out.println(name+"喝了"+temp+"升水");}
		else{
			water_used+=waterAmount;
			waterAmount=0;
			System.out.println(name+"将剩下的水喝完了");}}
	int GetpeopleNumber(){
		return peopleNumber;}}
public class land{
	public static void main(String args[]){
		Village.waterAmount=200;
		System.out.println("水井中有"+Village.waterAmount+"升水");
		
		Village zhaozhuang,majiahezi;
		zhaozhuang =new Village("赵庄",80);
		majiahezi  =new Village("马家河子", 120);
		
		zhaozhuang.drinkwater(50);
		
		System.out.println("马家河子查看水井剩余水量"+majiahezi.lookwaterAmout()+
		                   "升");
		majiahezi.drinkwater(100);
		
		System.out.println("赵庄查看水井剩余水量"+zhaozhuang.lookwaterAmout()+
		                   "升");
		System.out.println(zhaozhuang.name+"人口:"+zhaozhuang.peopleNumber);
		System.out.println(majiahezi.name+"人口:"+majiahezi.peopleNumber);}}