Para los conceptos básicos del bucle

package com.Study.struct;

## //计算0-100奇数和偶数的和

public class ForDemo02 {
    
    
    public static void main(String[] args) {
    
    
        int oddsum = 0;
        int evensum = 0;

        for (int i = 0; i < 100; i++) {
    
    
            if (i%2!=0){
    
    
                oddsum = oddsum+i;

            }else {
    
    
                evensum = evensum+i;
            }
        }
        System.out.println("奇数和为"+oddsum);
        System.out.println("偶数和为"+evensum);
    }
}


package com.Study.struct;

## //用for循环输出1-1000之间能被5整除的数，并且每行输出3个

。
public class ForDemo03 {
    
    
    public static void main(String[] args) {
    
    

        for (int i = 0; i <=1000; i++) {
    
    
            if (i%5==0){
    
    
                System.out.print(i+"\t");
            }
            if (i%(5*3)==0){
    
    
                System.out.println();
                //System.out.print("\n");
            }
        }
    }
}