进制数转换

 

import java.util.*;

 

public class Solution {

/**

* 进制转换

* @param M int整型 给定整数

* @param N int整型 转换到的进制

* @return string字符串

*/

public String solve (int M, int N) {

if (M == 0) {

return "0";

}

String s = "0123456789ABCDEF";

StringBuilder sb = new StringBuilder();

boolean flag = false;

if (M < 0) {

M = -M;

flag = true;

}

while (M != 0) {

sb.append(s.charAt(M % N));

M = M / N;

}

if (flag) {

sb.append("-");

}

return sb.reverse().toString();

 

}

}