/*
* A:案例演示
* 需求：求出1-10之間資料之和
* B:學生練習
* 需求：求出1-100之間偶數和
* 需求：求出1-100之間奇數和
分析:1-10數據的和
0 + 1
1 + 2
3 + 3
6
...
*/
class Test2_For {
public static void main(String[] args) {
//1-10的和
/*int sum = 0;
for (int i = 1;i <= 10 ;i++ ) {
sum = sum + i;
}
System.out.println("sum = " + sum);*/
//1-100的偶數和
/*int sum = 0;
for (int i = 1;i <= 100 ;i++ ) {
if (i % 2 == 0) {
sum = sum + i;
}
}
System.out.println("sum = " + sum);*/
//1-100的奇數和
int sum = 0;
for (int i = 1;i <= 100 ;i+=2 ) {
/*if (i % 2 != 0) {
sum = sum + i;
}*/
sum = sum + i;
}
System.out.println("sum = " + sum);
}
}