Program Will Not Calculate Or Print Out Intersection And Difference

I have to use methods and loops to code this program. Cannot use any java set or any built in java shortcuts!

import java.util.Scanner;
public class setPractice {
public static Scanner kbd;
public static final int MAXSIZE = 20;
public static void main(String[] args) {
kbd = new Scanner(System.in);

[Code] .....

This is the input I put in my code and this is the output:

How many numbers will be in the 1st set: 3

Enter list of integers for 1st set:
34
2
56

The ascending order for 1st is:
2
34
56

How many numbers will be in the 2nd set: 4

Enter list of integers for 2nd set:
56
2
33
6

The ascending order for the 2nd set is:
2
6
33
56

The intersection of the two sets is: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

The difference of A-B is: