The challenge in the project is developing algorithms that accomplishes basic operations over an array of integer number

[answerhappygod]

The challenge in the project is developing algorithms that
accomplishes basic operations over an array of integer numbers.
The three operations are:
Here is the code:
**
* ITSC 1212 ArrayUtil_Test class for Project 4
*/
public class ArrayUtil_Test {
public static void main(String[] args) {
// statements for output formatting
System.out.println("*******************************");
System.out.println(" Array Utility Project ");
System.out.println("*******************************");
ArrayUtil arrayUtility = new ArrayUtil();
int[] arr0 = {};
arrayUtility.setIntArray(arr0);
System.out.println("Test 0 - min value: " + validate(0,
arrayUtility.minValue()));
System.out.println("Test 0 - max value: " + validate(0,
arrayUtility.maxValue()));
System.out.println("Test 0 - count unique: " + validate(0,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr1 = { 3, -3, -1, 0, -1, 4, 0, 3, 4, 0 };
arrayUtility.setIntArray(arr1);
System.out.println("Test 1 - min value: " + validate(-3,
arrayUtility.minValue()));
System.out.println("Test 1 - max value: " + validate(4,
arrayUtility.maxValue()));
System.out.println("Test 1 - count unique: " + validate(5,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr2 = { 4, 3, -1, 1, -3, -1, 1, -5, -3, -4 };
arrayUtility.setIntArray(arr2);
System.out.println("Test 2 - min value: " + validate(-5,
arrayUtility.minValue()));
System.out.println("Test 2 - max value: " + validate(4,
arrayUtility.maxValue()));
System.out.println("Test 2 - count unique: " + validate(7,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr3 = { 0, 0, 0, -3, 0, -1, -3, 1, 1, 2 };
arrayUtility.setIntArray(arr3);
System.out.println("Test 3 - min value: " + validate(-3,
arrayUtility.minValue()));
System.out.println("Test 3 - max value: " + validate(2,
arrayUtility.maxValue()));
System.out.println("Test 3 - count unique: " + validate(5,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr4 = { 8, 7, -1, -2, 9, 0, 3, 2, -2, 3, -2, 9, 2, -3, 3
};
arrayUtility.setIntArray(arr4);
System.out.println("Test 4 - min value: " + validate(-3,
arrayUtility.minValue()));
System.out.println("Test 4 - max value: " + validate(9,
arrayUtility.maxValue()));
System.out.println("Test 4 - count unique: " + validate(9,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr5 = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
arrayUtility.setIntArray(arr5);
System.out.println("Test 5 - min value: " + validate(1,
arrayUtility.minValue()));
System.out.println("Test 5 - max value: " + validate(10,
arrayUtility.maxValue()));
System.out.println("Test 5 - count unique: " + validate(10,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr6 = { 2, -3, -1, 0, 1, -2 };
arrayUtility.setIntArray(arr6);
System.out.println("Test 6 - min value: " + validate(-3,
arrayUtility.minValue()));
System.out.println("Test 6 - max value: " + validate(2,
arrayUtility.maxValue()));
System.out.println("Test 6 - count unique: " + validate(6,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr7 = { -4, 3, 6, -2, -1, -4 };
arrayUtility.setIntArray(arr7);
System.out.println("Test 7 - min value: " + validate(-4,
arrayUtility.minValue()));
System.out.println("Test 7 - max value: " + validate(6,
arrayUtility.maxValue()));
System.out.println("Test 7 - count unique: " + validate(5,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr8 = { 0, -1, 0 };
arrayUtility.setIntArray(arr8);
System.out.println("Test 8 - min value: " + validate(-1,
arrayUtility.minValue()));
System.out.println("Test 8 - max value: " + validate(0,
arrayUtility.maxValue()));
System.out.println("Test 8 - count unique: " + validate(2,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr9 = { 1, 2, -1, 40, 1, 40, 0, 0, -3, 2, 2, -2, -5, 0, 1,
-4, -5 };
arrayUtility.setIntArray(arr9);
System.out.println("Test 9 - min value: " + validate(-5,
arrayUtility.minValue()));
System.out.println("Test 9 - max value: " + validate(40,
arrayUtility.maxValue()));
System.out.println("Test 9 - count unique: " + validate(9,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
int[] arr10 = { 4, 5, 5, 4, 1, 5, -3, 4, -1, -2, -2, -2, -2, -2,
-2, 1, 4,
5, -5 };
arrayUtility.setIntArray(arr10);
System.out.println("Test 10 - min value: " + validate(-5,
arrayUtility.minValue()));
System.out.println("Test 10 - max value: " + validate(5,
arrayUtility.maxValue()));
System.out.println("Test 10 - count unique: " + validate(7,
arrayUtility.countUniqueIntegers()));
System.out.println("-----------------------");
}
// DO NOT MODIFY validate METHOD
private static String validate(int expected, int answer) {
if (answer != expected) {
return ("The result " + answer + " does not match expected: "
+
expected + " --->> Failed");
} else {
return ("The result " + answer + " match expected: " + expected +
"
--->> OK");
}
}