数组算法小题四

package shuzu_practice;

public class Practice4 {
    /*
    需求4:
        输出1到100之内的素数及总个数
      要求5个一行,数字之间使用空格隔开
      不允许使用集合
     */
    //4,6,8,9
    //1,2,3,5,7,11
    public static void main(String[] args) {
        int i = 1;
        int count = 0;
        while (i <= 100) {
            boolean flag = true;
            if (i == 1) {
                flag = false;
            }
            for (int j = 2; j < i; j++) {//i = 9; j = 1,2,3,4,5,6,7,8
                if (i % j == 0) {
                    flag = false;
                }
            }
            if (flag) {
                if (count != 0 && count % 5 == 0) {
                    System.out.println();
                }
                System.out.print(i + "\t");
                count++;
            }
            i++;
        }
        System.out.println();
        System.out.println("素数的个数为" + count);
    }

}