jatin7
diff --git a/‎java-callables-and-futures/Readme.md b/‎java-callables-and-futures/Readme.md
diff --git a/‎java-callables-and-futures/src/InvokeAllExample.java
Lines changed: 2 additions & 0 deletions b/‎java-callables-and-futures/src/InvokeAllExample.java
Lines changed: 2 additions & 0 deletions
diff --git a/‎java-callables-and-futures/src/InvokeAnyExample.java
Lines changed: 2 additions & 0 deletions b/‎java-callables-and-futures/src/InvokeAnyExample.java
Lines changed: 2 additions & 0 deletions
diff --git a/‎java-executors-and-thread-pool/Readme.md b/‎java-executors-and-thread-pool/Readme.md
diff --git a/‎java-lock-objects-and-atomic-variables/Readme.md b/‎java-lock-objects-and-atomic-variables/Readme.md
diff --git a/‎java-lock-objects-and-atomic-variables/src/ReadWriteLockExample.java
Lines changed: 5 additions & 0 deletions b/‎java-lock-objects-and-atomic-variables/src/ReadWriteLockExample.java
Lines changed: 5 additions & 0 deletions
diff --git a/‎java-lock-objects-and-atomic-variables/src/ReentrantLockCounter.java
Lines changed: 40 additions & 0 deletions b/‎java-lock-objects-and-atomic-variables/src/ReentrantLockCounter.java
Lines changed: 40 additions & 0 deletions
diff --git a/‎java-lock-objects-and-atomic-variables/src/StampedLockExample.java
Lines changed: 5 additions & 0 deletions b/‎java-lock-objects-and-atomic-variables/src/StampedLockExample.java
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diff --git a/‎java-threads-and-runnables/Readme.md b/‎java-threads-and-runnables/Readme.md
@@ -32,5 +32,7 @@ public static void main(String[] args) throws InterruptedException, ExecutionExc
             // The result is printed only after all the futures are complete. (i.e. after 5 seconds)
             System.out.println(future.get());
         }
+
+	executorService.shutdown();
     }
 }
@@ -28,5 +28,7 @@ public static void main(String[] args) throws InterruptedException, ExecutionExc
         String result = executorService.invokeAny(Arrays.asList(task1, task2, task3));
 
         System.out.println(result);
+
+	executorService.shutdown();
     }
 }
@@ -0,0 +1,5 @@
+/**
+ * Created by rajeevkumarsingh on 11/05/17.
+ */
+public class ReadWriteLockExample {
+}
@@ -0,0 +1,40 @@
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.locks.ReentrantLock;
+
+/**
+ * Created by rajeevkumarsingh on 11/05/17.
+ */
+
+public class ReentrantLockCounter {
+    private final ReentrantLock lock = new ReentrantLock();
+
+    private int count = 0;
+
+    public void increment() {
+        lock.lock();
+        try {
+            count = count + 1;
+        } finally {
+            lock.unlock();
+        }
+    }
+
+    public int getCount() {
+        return count;
+    }
+
+    public static void main(String[] args) {
+        ExecutorService executorService = Executors.newFixedThreadPool(2);
+
+        ReentrantLockCounter counter = new ReentrantLockCounter();
+
+        for(int i = 0; i < 1000; i++) {
+            executorService.submit(() -> counter.increment());
+        }
+
+        executorService.shutdown();
+
+        System.out.println("Final count is : " + counter.getCount());
+    }
+}
@@ -0,0 +1,5 @@
+/**
+ * Created by rajeevkumarsingh on 11/05/17.
+ */
+public class StampedLockExample {
+}
Original file line number	Diff line number	Diff line change
`@@ -32,5 +32,7 @@ public static void main(String[] args) throws InterruptedException, ExecutionExc`
`32`	`32`	`// The result is printed only after all the futures are complete. (i.e. after 5 seconds)`
`33`	`33`	`System.out.println(future.get());`
`34`	`34`	`}`
	`35`	`+`
	`36`	`+ executorService.shutdown();`
`35`	`37`	`}`
`36`	`38`	`}`
Original file line number	Diff line number	Diff line change
`@@ -28,5 +28,7 @@ public static void main(String[] args) throws InterruptedException, ExecutionExc`
`28`	`28`	`String result = executorService.invokeAny(Arrays.asList(task1, task2, task3));`
`29`	`29`
`30`	`30`	`System.out.println(result);`
	`31`	`+`
	`32`	`+ executorService.shutdown();`
`31`	`33`	`}`
`32`	`34`	`}`
-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +/**
 + * Created by rajeevkumarsingh on 11/05/17.
 + */
 +public class ReadWriteLockExample {
 +}