Decimal 12 into Java version __java

Package zsy.com;

Import java.util.ArrayList;
Import Java.util.Scanner;

public class Jinzhizhuanhuan {public

	static void Main (string[] args) {
		//TODO auto-generated method stub
		Sca Nner in = new Scanner (system.in);
		System.out.print ("Please input the number of your want to change:");
		int a = In.nextint ();
		String B = Get_result (change (a));
		System.out.println (b);
	}
	
	public static arraylist<integer> Change (int n) {
		arraylist<integer> rs = new arraylist<integer> ( );
		int x = 0;
		while (n!=0) {
			x = n%;
			Rs.add (x);
			n = n/12;
		}
		return RS;
	}
	
	public static String Get_result (arraylist<integer> rs) {
		int count = Rs.size ()-1;
		String fin = "";
		for (int i=count;i>=0;i--) {
			if (rs.get (i) ==10) {
				fin = fin + "A";
			} else if (Rs.get (i) ==11) {
				fin = fin + "B";
			} else{
				fin = fin + rs.get (i);
			}
		return fin;
	}

running case and result screenshot: