public static void main(string[] args) {
system.out.println(tobin(6));
system.out.println(tohex(0));
system.out.println(tooct(8));
}
public static string tobin(int num){
return trans(num,1,1);
}
public static string tohex(int num){
return trans(num,15,4);
}
public static string tooct(int num){
return trans(num,7,3);
}
public static string trans(int num, int base, int offset){
if (num ==0)
return "0";
char[] chs = {'0','1','2','3','4','5','6','7','8','9','a','b','c','b','e','f'};
char[] arr = new char[32];
int pos=arr.length;
while (num!=0){
int temp = num & base;
arr[--pos]=chs[temp];
num = num >>> offset;
}
stringbuffer stringbuffer = new stringbuffer();
for (int i = pos; i < arr.length; i++) {
stringbuffer.append(arr[i]);
}
return stringbuffer.tostring();
}
