java

质数循环查找

package day07_addition;

//范围查找质数
public class PrimeNumLoop {
    public static void main(String[] args){
        int counter = 0;
        int number = 0;

        //2~100循环查找
        for(int n=2;n<=100;n++){
            boolean flag = true;
            
            //单个数字查找质数
            for(int i=2;i<n;i++){
                if(n%i == 0){
                    flag = false;
                    break;
                }
            }
                //判断质数
                if(flag){
                    System.out.print(n+" ");
                    counter++;
                    number++;
                }
                if(counter%10 == 0){
                    System.out.println();
                }
        }
        System.out.println();
        System.out.println("共计:"+number);
    }
}