final commit

README.md

@@ -43,5 +43,5 @@ Calculates and returns the sum of primes number.
 - ParallelCounter4 Class: Similar to ParallelCounter3 but uses executor.submit to submit tasks and obtain Future objects for results. Calculates and returns the sum of primes number.
 
 
-
+The SequentialCounter class is a simple sequential implementation for counting primes number within a given range.
 

src/test/java/Tester.java

@@ -21,6 +21,26 @@ public class Tester extends TestCase {
     }
 
     public void testSingleThread() {
+        testAll(1);
+    }
+
+    public void testTwoThread() {
+        testAll(2);
+    }
+
+    public void testSevenThread() {
         testAll(7);
     }
+
+    public void testEightThread() {
+        testAll(8);
+    }
+
+    public void test11Thread() {
+        testAll(11);
+    }
+
+    public void test16Thread() {
+        testAll(16);
+    }
 }