sub bit - comments added

Author: Ram swaroop

src/me/ramswaroop/bits/SubBit.java

@@ -18,13 +18,13 @@ public class SubBit {
      * @param end
      * @return
      */
-    public static int getSubBit(int num, int start, int end) {
+    public static int getSubBits(int num, int start, int end) {
         num <<= (32 - end);
-        num >>>= (start - end + 31);
+        num >>>= (start - end + 31); // more intuitive (start - 1 + 32 - end)
         return num;
     }
 
     public static void main(String a[]) {
-        System.out.println(getSubBit(15, 1, 2));
+        System.out.println(getSubBits(15, 1, 2));
     }
 }