Added function to print a list

src/main/java/mattrixwv/Algorithms.java

@@ -968,4 +968,16 @@ public class Algorithms{
 		//Conver the number to binary string
 		return num.toString(2);
 	}
+	//Print a list
+	public static <T> String printList(ArrayList<T> list){
+		StringBuilder listString = new StringBuilder("[");
+		for(int cnt = 0;cnt < list.size();++cnt){
+			listString.append(list.get(cnt));
+			if(cnt < list.size() - 1){
+				listString.append(", ");
+			}
+		}
+		listString.append("]");
+		return listString.toString();
+	}
 }

src/test/java/mattrixwv/TestAlgorithms.java

@@ -559,4 +559,33 @@ public class TestAlgorithms{
 		answer = Algorithms.toBin(bigNum);
 		assertEquals("toBin big 3 failed", correctAnswer, answer);
 	}
+	@Test
+	public void testPrintList(){
+		//Test 1
+		ArrayList<Integer> nums = new ArrayList<Integer>();
+		String correctAnswer = "[]";
+		String answer = Algorithms.printList(nums);
+		assertEquals("printList<Integer> 1 failed", correctAnswer, answer);
+		//Test 2
+		nums = new ArrayList<Integer>(Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
+		correctAnswer = "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]";
+		answer = Algorithms.printList(nums);
+		assertEquals("printList<Integer> 2 failed", correctAnswer, answer);
+		//Test 3
+		nums = new ArrayList<Integer>(Arrays.asList(-3, -2, -1, 0, 1, 2, 3));
+		correctAnswer = "[-3, -2, -1, 0, 1, 2, 3]";
+		answer = Algorithms.printList(nums);
+		assertEquals("printList<Integer> 3 failed", correctAnswer, answer);
+
+		//Test 4
+		ArrayList<String> strings = new ArrayList<String>(Arrays.asList("A", "B", "C"));
+		correctAnswer = "[A, B, C]";
+		answer = Algorithms.printList(strings);
+		assertEquals("printList<String> 1 failed", correctAnswer, answer);
+		//Test 5
+		strings = new ArrayList<String>(Arrays.asList("abc", "def", "ghi"));
+		correctAnswer = "[abc, def, ghi]";
+		answer = Algorithms.printList(strings);
+		assertEquals("printList<String> 2 failed", correctAnswer, answer);
+	}
 }