How to remove duplicate numbers in an Array of integers

import java.util.Arrays;

public class DuplicateNumbersRemoval {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		int [] arrNums= {23,44,13,754,128,23,200,44};
		int targetIdx=0,upperBound;
		int [] arrTarget = new int[arrNums.length];
		System.out.println("The original Array given below");
		dispArr(arrNums,arrNums.length);

		System.out.println("The original Array below after sorting");
		Arrays.sort(arrNums);
		dispArr(arrNums,arrNums.length);

		//Compare the successive elements of original array and store the unique number into the target array
		for (int i=0;i<arrNums.length;i++) {

			if ((i+1) == arrNums.length) {
				upperBound=arrNums.length-1;
				arrTarget[targetIdx++]=arrNums[i];
			}
			else
				upperBound=i+1;

			if (arrNums[i] == arrNums[upperBound]) 
				continue;
			else
				arrTarget[targetIdx++]=arrNums[i];	
		}
		System.out.println("The final Array after removing the duplicate numbers is below");
		dispArr(arrTarget, targetIdx);
	}

	public static void dispArr(int [] tempArr, int idxTmp) {
		System.out.print("[ ");
		for(int i=0;i<idxTmp;i++)
			System.out.print(tempArr[i]+" ");
		System.out.println("]");
	}
}