Java进阶之欧拉工程 第六篇【持续更新】

Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025

385
= 2640.

public class Launcher {

public static void main(String[] args) {

int num1=0,num2=0;
for(int i =1;i<101;i++){
num1=(int) (num1+Math.pow(i,2));
num2+=i;
}

int answer=(int) (Math.pow(num2,2)-num1);
System.out.println(answer);

}

}