Java第三章习题3-7（1到n的阶乘和<=9999）

Find.java

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/**
 *
 * @author Administrator
 */
public class Find {
    public void main(){
        int n=9999;
        int sum=0;
        int k=1,i=1;
        for( i=1;i<=10;i++){
            k=k*i;
            sum=sum+k;
            if(sum>9999){
                break;
            }
        }
        System.out.println(i-1);

            
    }
    
}
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