숫자를 바이너리...

package ex;

import java.util.Scanner;

public class Binary {
 public static void main(String[] args){
  
  
  String[] binary = {"0000","0001","0010","0011","0100","0101","0110","0111","1000","1001","1010","1011","1100","1101",
    "1110","1111"};
  Scanner sc = new Scanner(System.in);
  String g =sc.nextLine();
  char tt=g.charAt(0);
  String result="";
 
    
   if(tt>='0' && tt<='9')
   {
    result += binary[tt-'0'];
   }else{
    result =result+":"+binary[tt-'A'+10]+"\n";
   }
    
  
 
  System.out.println(tt);
  System.out.println("binary"+result);
 
 
 
 
 }

}