Tag: technology

Quizzes (307) Questions (36705)

Questions Related to technology

Multiple choice technology programming languages

Which of the following statements are true about the default implementation of the public int hashCode() method of the Object class?

  1. The Object class does not provide any implementation for the hashCode method; every class must override it

  2. As far as it may be practically possible, the hashCode method defined by the Object class does return distinct integers for distinct objects

  3. For two object references referring to the same object, the hashCode method returns the same integer

  4. It returns a fixed number that internally represents the Object class for the JVM

  5. Only choice D is correct
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation
Multiple choice technology programming languages

Read the code below. Will be the result of attempting to compile and run the code below. public class AQuestion { public void method(Object o){ System.out.println("Object Verion"); } public void method(String s){ System.out.println("String Version"); } public static void main(String args[]){ AQuestion question = new AQuestion(); question.method(null); } }

  1. The code does not compile

  2. The code compiles cleanly and shows “Object Version

  3. The code compiles cleanly and shows “String Version”

  4. The code throws an Exception at Runtime
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation