2020-10-19 1000-100质数

package j2ee_1019;

public class Fangfa {
    /**
     * 判断1000以内质数
     * 
     * @param a[]
     * @return
     */
    public void zhiShu() {
        boolean b = true;
        int k = 0;
        for (int i = 2; i < 1000; i++) {

            for (int j = 2; j < i; j++) {
                
                if (i % j == 0) {
                    b = false;
                    if (j % 100 == 0) {
                        System.out.println();
                    }
                }

                
            }

            if (b && i>100) {
                System.out.print(i + " ");
                k++;
            }
            b = true;

        }
        System.out.println("\n100到1000质数总数为："+k);
    }

    public static void main(String[] args) {
        Fangfa fangfa = new Fangfa();

        fangfa.zhiShu();

    }

}