What is the result?

One thought on “What is the result?”

1. Correct answer is B. as DonBa says:

   class Alpha {
   public String doStuff(String msg) {
   return msg;
   }
   }

   class Beta extends Alpha {
   public String doStuff(String msg) {
   return msg.replace(‘a’, ‘e’);
   }
   }

   class Gamma extends Beta {
   public String doStuff(String msg) {
   return msg.substring(2);
   }
   }

   public class Test {
   public static void main(String[] args) {

   List strs = new ArrayList();
   strs.add(new Alpha());
   strs.add(new Beta());
   strs.add(new Gamma());

   for (Alpha t : strs) {
   System.out.println(t.doStuff(“Java”));
   }
   }
   }

   Output:
   Java
   Jeve
   va

   Reply

2. Correct answer is B.

   2

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