Remove duplicate elements in an Array

package com.test.blogger;

/**
 * @author EducateJava
 */
public class RemoveDuplicatesFromArray {

 public static void main(final String[] args) {

  final RemoveDuplicatesFromArray removeDuplicatesFromArray = new RemoveDuplicatesFromArray();
  final String[] finalArray = removeDuplicatesFromArray
    .removeDup(new String[] { "1", "one", "1", "three", "two", "2", "three", "1" });
  for (final String obj : finalArray) {
   System.out.println(obj);
  }
 }

 public String[] removeDup(final String[] stringArray) {
  boolean matched = false;
  final String[] res = new String[stringArray.length];

  for (int i = 0; i < stringArray.length; i++) {
   res[i] = "";
  }

  int counter = 0;

  for (final String element : stringArray) {

   for (final String re : res) {
    if (element == re) {
     matched = true;
     break;
    } else {
     matched = false;
    }
   }
   if (!matched) {
    res[counter] = element;
    counter++;
   }
  }
  return res;
 }
}

Output:
=======
1
one
three
two
2