输出1到100内前五个可以被3整除的数 while for

while循环

public class Test {
	public static void main (String[] args) {
		int num = 0,i = 1;
		while(i<100) {
			if(i%3 == 0) {
				System.out.print(" "+i);
				num++;
			}
			if(num==5) {
				break;
			}
			i++;
		}
	}
}

for循环

public class Test {
	public static void main (String[] args) {
		int num = 0;
		for(int i = 1;i<100;i++) {
			if(i%3 == 0) {
				System.out.print(" "+i);
				num++;
			}
			if(num == 5) {
				break;
			}
		} 
	}
}