Duplicate Values are not Duplicate in Array in Java

Program:
package com.dustbin;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class DuplicateNotAllowed {

    static int[] a = {5,1,2,3,4,5,7,8,9,10};
    static int[] b = new int[10];
    static int f, i, k, j = 0;
    static int l = a.length;

    static void deleteDuplicate(int ele) {
        j = 0;
        for (int i = 0; i < l; i++)
            if (a[i] != ele)
                b[i - j] = a[i];
            else
                ++j;
    }

    public static void main(String[] args) {

 
        System.out.println("Array elements are:");

 
        for (i = 0; i < a.length; i++)

 
            System.out.println(a[i]);

 
        InputStreamReader is = new InputStreamReader(System.in);

 
        BufferedReader br = new BufferedReader(is);

 
        System.out.print("Enter the element to be deleted: ");

 
        try {

 
            String s = br.readLine();

 
            f = Integer.parseInt(s);

 
            deleteDuplicate(f);

 
            System.out.println("New array:");

 
            for (i = 0; i < l - j; i++)

 
                System.out.println(b[i]);

 
            if (j == 0)

 
                System.out.println("Entered element was not found in the given array"); 

 } catch (IOException e) {

 
            System.out.println(e);
        }
    }
}


OutPut:

Array elements are:
5
1
2
3
4
5
7
8
9
10
Enter the element to be deleted: 5
New array:
1
2
3
4
7
8
9
10