package czlclass.First.operator;

public class For1 {
    public static void main(String[] args) {
        int m =0;
        int n =0;
        for (int i = 0; i < 100; i++) {
            if (i%2!=0){  //判断奇数
                m+=i;  //m+i
            }else{   //偶数
                n+=i;
            }

        }
        System.out.println("奇数的和为："+m);
        System.out.println("偶数的和为："+n);
    }

}

====================================================================

1000以内，5的倍数之和，三个一行

package czlclass.First.operator;

public class For2 {
    public static void main(String[] args) {
        for (int i = 0; i < 1000; i++) {
            if (i%5==0){
                System.out.print(i+"\t");
            }
            if (i%(3*5)==0){  //每行三个，换行
                System.out.println("\n");
            }
        }
    }
}