Added Array cloning test to demo copying a reference

to and object versus cloning/copying the object

Author: Michael Kabatek

ArrayCloneTest/ArrayCloneTest.java

@@ -0,0 +1,58 @@
+import java.util.Arrays;
+
+public class ArrayCloneTest {
+
+	//Private Member Variables
+	static String myString = "Hello, World";
+	static int[] data = {2, 3, 4, 5, 6, 7};
+	static int[] backup;
+
+
+	private static void printStuff(String inputString){
+
+		System.out.println(inputString);
+
+	}
+
+	public static void main(String[ ] args) {
+		
+		
+
+		printStuff("data: " + Arrays.toString(data));
+		printStuff("Assign data's reference to backup");
+		printStuff("backup = data;");
+		backup = data;
+
+		printStuff("backup now contains a reference/alias to the data variable ...");
+
+		printStuff("changing value in data: data[2] = 10;");
+		data[2] = 10;
+		printStuff("data: " + Arrays.toString(data));
+		printStuff("backup: " + Arrays.toString(backup));
+
+		printStuff("!!! Notice Both Arrays Changed !!!");
+
+
+		printStuff("");
+		printStuff("## Reset variables ##");
+		printStuff("");
+		data = new int[] {2, 3, 4, 5, 6, 7};
+		backup = new int[] {};
+
+		printStuff("data: " + Arrays.toString(data));
+		printStuff("clone data to backup to make a copy");
+		printStuff("backup = data.clone();");
+		backup = data.clone();
+
+		printStuff("COPY data to new variable backup using .clone()...");
+
+		printStuff("changing value in data: data[2] = 10;");
+		data[2] = 10;
+		printStuff("data: " + Arrays.toString(data));
+		printStuff("backup: " + Arrays.toString(backup));
+		printStuff("!!! Notice only data Array Changed !!!");
+
+		
+	}
+
+}