Question

Java question

1. At what stage in the following method does the object initially referenced by s becomes available for garbage collection.

   void method X()  { 

       String r = new String("abc");

       String s = new String("abc");

       r = r+1; //1

       r = null; //2

       s = s + r; //3

   } //4

   	a.	Before statement label 1
   	b.	Before statement label 2
   	c.	Before statement label 3
   	d.	Before statement label 4

Answer 1

Before statement label 4 in the method the object initially referenced by s becomes available for garbage collection.

So, answer is option D

Answer:

Before statement label 4