Started keyValueMap, changed UI functions to use map values instead of strings.

src/ui/keyValueMap.java

+package ui;
+
+import java.util.Hashtable;
+
+/**
+ * keyValueMap initializes a Hashtable which maps the string value in the UI to a Windows Integer key code.
+ */
+public class keyValueMap {
+    Hashtable<String, Integer> matchKey;
+
+    public keyValueMap () {
+        matchKey = new Hashtable<String, Integer>();
+        //Add keys, codes
+        matchKey.put("Q ", 81);
+        matchKey.put("W ", 87);
+        matchKey.put("E ", 69);
+        matchKey.put("R ", 82);
+        matchKey.put("T ", 84);
+        matchKey.put("Y ", 89);
+        matchKey.put("U ", 85);
+        matchKey.put("I ", 73);
+        matchKey.put("O ", 79);
+        matchKey.put("P ", 80);
+        matchKey.put("A ", 65);
+        matchKey.put("S ", 83);
+        matchKey.put("D ", 68);
+        matchKey.put("F ", 70);
+        matchKey.put("G ", 71);
+        matchKey.put("H ", 72);
+        matchKey.put("J ", 74);
+        matchKey.put("K ", 75);
+        matchKey.put("L ", 76);
+        matchKey.put("Z ", 90);
+        matchKey.put("X ", 88);
+        matchKey.put("C ", 67);
+        matchKey.put("V ", 86);
+        matchKey.put("B ", 66);
+        matchKey.put("N ", 78);
+        matchKey.put("M ", 77);
+
+    }
+
+    /**
+     * Returns the integer keycode for a given string parameter
+     * @param keyPressed String parameter represetning a key
+     * @return Keycode in matchKey for String parameter keyPressed
+     */
+    public Integer getKeyCode(String keyPressed) {
+        return matchKey.get(keyPressed);
+    }
+}