@@ -14,7 +14,7 @@
  */
 public class Foobar {
 
-    private int n;
+    private final int n;
 
     Semaphore foo = new Semaphore(1);
     Semaphore bar = new Semaphore(0);
@@ -39,7 +39,6 @@ public void bar(Runnable printBar) throws InterruptedException {
         }
     }
 
-
     public static void main(String[] args) throws InterruptedException {
         Foobar foobar = new Foobar(10);
         ExecutorService executorService = Executors.newFixedThreadPool(2);
Original file line number	Diff line number	Diff line change
`@@ -14,7 +14,7 @@`
`14`	`14`	`*/`
`15`	`15`	`public class Foobar {`
`16`	`16`
`17`		`- private int n;`
	`17`	`+ private final int n;`
`18`	`18`
`19`	`19`	`Semaphore foo = new Semaphore(1);`
`20`	`20`	`Semaphore bar = new Semaphore(0);`
`@@ -39,7 +39,6 @@ public void bar(Runnable printBar) throws InterruptedException {`
`39`	`39`	`}`
`40`	`40`	`}`
`41`	`41`
`42`		`-`
`43`	`42`	`public static void main(String[] args) throws InterruptedException {`
`44`	`43`	`Foobar foobar = new Foobar(10);`
`45`	`44`	`ExecutorService executorService = Executors.newFixedThreadPool(2);`