《Monkey Java》课程3.4之练习课

public class Demo01 {
	public static void main(String[] args) {
        for(int i = 100; i < 201; i++){
            boolean b = false;
            for(int j = 2; j < i - 1; j++){
                int k = i % j;
                if(k == 0){
                    b = true;
                }
            }
            if(!b){
                System.out.println(i);
            }
        }
	}
}

public class Demo02 {
	public static void main(String[] args) {
		for(int i = 1; i < 5; i++){
			for (int j = 0; j < 4 - i; j++) {
				System.out.print(" ");
			}
			for (int k = 0; k < i; k++) {
				System.out.println("* ");
			}
			System.out.println("");
		}
	}
}