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public class UniqueArray
{
public static void main(String[] args)
{
//We create an arraylist wich will contain integers
//we use Integer instead of int because ArrayList only accepts an object, and int is a primitive type, not a Class
//so we use a Wrapper (Integer)
ArrayList<Integer> list = new ArrayList<Integer>();
int[] tab = {1, 2, 1, 5, 8, 9, 8, 5};
System.out.print("Before: ");
for (int i = 0; i < tab.length; i++)
System.out.print(tab + " ");
System.out.println("");
for (int i = 0; i < tab.length; i++)
{
if (!list.contains(tab)) //if the current element isn't already in the arraylist
list.add(tab); //we add it
}
//we create a new array wich have the same number of elements as the arraylist
int[] newTab = new int[list.size()];
//we populatre the new array
for (int i = 0; i < newTab.length; i++)
{
newTab = list.get(i);
}
System.out.print("After: ");
for (int i = 0; i < newTab.length; i++)
System.out.print(newTab + " ");
}
}

import java.util.ArrayList;