public class circulation {public int times( int n){int i = 1;int count = 0;while (i <= n) {i = i * 2;count++;}return count;}/* 可以不用return返回public void times(int n){int i = 1;int count = 0;while (i <= n) {i = i * 2;count++;}System.out.println(count);}*/}//测试public class circulationtest {public static void main(String[] args){circulation c=new circulation();//c.times(4); 如果不用return时System.out.println(c.times(4));}
}
