public class SumOddNumber{
public static void main(String[] args){
int sum = 0;
for(int i = 1; i<100; i++){
if(i%2==1){
sum += i;
}
}
System.out.println(sum);
}
}
简便写法:
for(int i =1; i <100; i+=2)
直接对奇数进行遍历