Question

java编写程序,用while循环100以内-1+1/2-1/3+1/4-……-1/99+1/10

java编写程序,用while循环100以内-1+1/2-1/3+1/4-……-1/99+1/100

Answer 1

public class Su 
{
    public static void main(String[] args)
    {
        int sum = 0;
        int jia= 0;
        int jian = 0;
        for(int i =1; i<=100; i++)
        {          
            if(i % 2 != 0)
            {
                jia = i+1;
            }
            else 
            {
                jian = i- 1;
            }  
        }
        sum = jia + jian;
        System.out.println(sum);
    }
}

Answer 2

boolean e=true;
int a=1;
double s;
while(e){
if(a==100)
break;
if(a%2==1){
s=s+1/(-a);
}else{
s=s+1/a;
}
a=a+1;
}
这样不知错不错

追答

int a=1;
double s;
while(true){
if(a==100)
break;
if(a%2==1){
s=s+1/(-a);
}else{
s=s+1/a;
}
a=a+1;
}
这样不知错不错

追问

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