二进制表示(14)

题目

public class Main {
	public static String con01(int x,int n) {
		StringBuffer s = new StringBuffer();
		while(x!=0) {
			s.append(x%n);
			x/=n;
		}
		return s.reverse().toString();
	}
	
	public static int con02(int x,int n) {
		StringBuffer s = new StringBuffer();
		int sum = 0;
		while(x!=0) {
			s.append(x%n);
			sum++;
			x/=n;
		}
		return sum;
	}

	public static void main(String[] args) {		
		//System.out.println(con01(10000,2));
		System.out.println(con02(10000,2));
	}
}