added questions

Author: Ram swaroop

_posts/2015-05-14-variables-and-literals.md

@@ -501,3 +501,40 @@ B. Line B
 C. Line C
 D. Line D
 E. Line E
+
+__Q2.__
+
+{% highlight java linenos %}
+class Mixer {
+ Mixer() {
+ }
+
+ Mixer(Mixer m) {
+  m1 = m;
+ }
+
+ Mixer m1;
+
+ public static void main(String[] args) {
+  Mixer m2 = new Mixer();
+  Mixer m3 = new Mixer(m2);
+  m3.go();
+  Mixer m4 = m3.m1;
+  m4.go();
+  Mixer m5 = m2.m1;
+  m5.go();
+ }
+
+ void go() {
+  System.out.print("hi ");
+ }
+}
+{% endhighlight %}
+
+What is the result?
+A. hi 
+B. hi hi 
+C. hi hi hi 
+D. Compilation fails 
+E. hi, followed by an exception 
+F. hi hi, followed by an exception