bl131, ah335, plg5

.classpath

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

src/debug/ContainerArray.java

@@ -1,17 +1,21 @@
 package debug;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import java.util.List;
 
 public class ContainerArray<E> {
-    private int initialCapacity = 10;
+    private int limit = 10;
     private int currentSize = 0;
-    private Object[] internalArray;
+    private E[] internalArray;
 
     public ContainerArray () {
         this(10);
     }
 
     public ContainerArray (int initialCapacity) {
-        internalArray = new Object[initialCapacity];
+        internalArray = (E[]) new Object[initialCapacity];
     }
 
     public void add (E element) {
@@ -23,11 +27,19 @@ public int size () {
     }
 
     public void remove (E objectToRemove) {
-        currentSize--;
+    	List<E> myList =  new ArrayList<E> (Arrays.asList(this.internalArray));
+    	if(myList.remove(objectToRemove)) currentSize--;
+    	this.internalArray = (E[]) myList.toArray();
     }
 
     @SuppressWarnings("unchecked")
     public E get (int index) {
-        return (E)internalArray[index];
+        return internalArray[index];
+    }
+
+    public static void main (String[] args) {
+       ContainerArray<String> myContainer = new ContainerArray<>();
+        myContainer.add("test");
+        myContainer.remove("test");
     }
 }

src/debug/ContainerArrayTest.java

@@ -7,10 +7,21 @@
 
 public class ContainerArrayTest {
     private ContainerArray<String> myContainer = null;
-
+    
     @Before
     public void setUp () {
         myContainer = new ContainerArray<>();
+
+    }
+
+    @Test 
+    public void testRemove() {
+          String alligator = "Alligator";
+    	  String bear = "Bear";
+          myContainer.add(alligator);
+          myContainer.add(bear);
+          myContainer.remove(alligator);
+          assertEquals("Remove should be different reference", bear, myContainer.get(0));
     }
 
     @Test

src/tdd/Sheet.java

@@ -0,0 +1,23 @@
+package tdd;
+
+import java.util.HashMap;
+import java.util.Map;
+
+
+public class Sheet {
+	public Map<String, String> myMap = new HashMap<>();
+
+	public String get(String string) {
+		return myMap.get(string) == null? "" : myMap.get(string);
+	}
+
+	public void put(String key, String value) {
+		try {
+			Integer.parseInt(value);
+			value = value.trim();
+		}
+		catch (Exception e) {
+		}
+		myMap.put(key, value);
+	}
+}

src/tdd/TestSheet.java

@@ -0,0 +1,84 @@
+package tdd;
+
+import static org.junit.Assert.*;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestSheet {
+
+	// TDD says you write the test first for what you want to accomplish 
+
+	// First test written is simply to get your code to compile (create the class, write some methods, etc.) 
+
+	private Sheet mySheet; 
+
+	// Initial setup with @Before
+	@Before
+	public void setUp() {
+		mySheet = new Sheet(); 
+	}
+
+	@Test
+	public void testThatCellsAreEmptyByDefault() {
+		  Sheet sheet = new Sheet();
+		  assertEquals("", sheet.get("A1"));
+		  assertEquals("", sheet.get("ZX347"));
+	}
+
+	@Test
+	public void testThatTextCellsAreStored() {
+		  Sheet sheet = new Sheet();
+		  String theCell = "A21";
+
+		  sheet.put(theCell, "A string");
+		  assertEquals("A string", sheet.get(theCell));
+
+		  sheet.put(theCell, "A different string");
+		  assertEquals("A different string", sheet.get(theCell));
+
+		  sheet.put(theCell, "");
+		  assertEquals("", sheet.get(theCell));
+	}
+
+	@Test
+	public void testThatManyCellsExist() {
+		  Sheet sheet = new Sheet();
+		  sheet.put("A1", "First");
+		  sheet.put("X27", "Second");
+		  sheet.put("ZX901", "Third");
+
+		  assertEquals("A1", "First", sheet.get("A1"));
+		  assertEquals("X27", "Second", sheet.get("X27"));
+		  assertEquals("ZX901", "Third", sheet.get("ZX901"));
+
+		  sheet.put("A1", "Fourth");
+		  assertEquals("A1 after", "Fourth", sheet.get("A1"));
+		  assertEquals("X27 same", "Second", sheet.get("X27"));
+		  assertEquals("ZX901 same", "Third", sheet.get("ZX901"));
+	}	
+
+	@Test
+	public void testThatNumericCellsAreIdentifiedAndStored() {
+		  Sheet sheet = new Sheet();
+		  String theCell = "A21";
+
+		  sheet.put(theCell, "X99"); // "Obvious" string
+		  assertEquals("X99", sheet.get(theCell));
+
+		  sheet.put(theCell, "14"); // "Obvious" number
+		  assertEquals("14", sheet.get(theCell));
+
+		  sheet.put(theCell, " 99 X"); // Whole string must be numeric
+		  assertEquals(" 99 X", sheet.get(theCell));
+
+		  sheet.put(theCell, " 1234 "); // Blanks ignored
+		  assertEquals("1234", sheet.get(theCell));
+
+		  sheet.put(theCell, " "); // Just a blank
+		  assertEquals(" ", sheet.get(theCell));
+		}
+
+
+
+}