求1+(1+2) +(1+2+3) +(1+2+3+4) +...+(1+2+3+..+100)的结果
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package HspLearning;
public class HomeWork06 {
// 求1+(1+2) +(1+2+3) +(1+2+3+4) +...+(1+2+3+..+100)的结果
public static void main(String[] args) {
int sum = 0;
for (int i =1;i <=100;i++){
for (int j = 1;j <=i;j++){
sum += j;
}
}
System.out.println("sum="+sum);
}
}
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