穷举法计算鸡兔同笼

public class JiTuTongLong{
static int chichen,habbit; //chichen代表鸡的个数，habbit代表兔的个数
public static  int qiongJu(int head , int foot) {//穷举算法
    int re,i,j;
    re=0;
    for(i=0;i<=head;i++) //循环
    {
        j=head-i;
        if(i*2+j*4==foot) //判断，找到答案
        {
           re=1; 
   chichen=i;
           habbit=j;
        }
    }
    return re;
}
public static void main(String[] args) {       //主方法
int re,head,foot;
System.out.println("穷举法求解鸡兔同笼问题:");
System.out.print("请输入头数：");
Scanner input=new Scanner(System.in);
head=input.nextInt();                     //输入头数
System.out.print("请输入脚数：");
foot=input.nextInt();                     //输入脚数
re=qiongJu(head,foot);
if(re==1){
System.out.println("鸡有"+chichen+"只，兔有"+habbit+"只。");
}
else{
System.out.println("无法求解！");
}
}
}