Add debugging for oving5

src/main/java/oving5/debugging/StringMergingIteratorProgram.java

@@ -0,0 +1,40 @@
+package oving5.debugging;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+public class StringMergingIteratorProgram {
+
+	public static void main(String[] args) throws Exception {
+		Iterator<String> one = List.of("a", "b").iterator();
+		Iterator<String> two = List.of("c", "d", "e").iterator();
+
+		StringMergingIterator mergeIterator = new StringMergingIterator(one, two);
+
+		List<String> values = new ArrayList<>();
+
+		while (mergeIterator.hasNext()) {
+			values.add(mergeIterator.next());
+		}
+
+		List<String> expectedOutput = List.of("a", "c", "b", "d", "e");
+
+		if (values.size() != expectedOutput.size()) {
+			throw new Exception(
+					"The merged output did not contain the expected number of values. Try using "
+							+ "the VS Code debugger to see the difference between the lists");
+		}
+
+		for (int i = 0; i < expectedOutput.size(); i++) {
+			if (!values.get(i).equals(expectedOutput.get(i))) {
+				throw new Exception(
+						"The iterator did not correctly merge the output. Try using the VS Code "
+								+ "debugger to see the difference between the lists");
+			}
+		}
+
+		System.out.println(
+				"Success! StringMergingIterator correctly merged the output of the two lists");
+	}
+}