Tag: programming languages

Quizzes (351) Questions (7021)

Questions Related to programming languages

Multiple choice technology programming languages

class test{} class tester extends test{ public static void main(String[] args) { test t1 = new tester(); test t2 = new test(); tester t3 = new tester(); System.out.println( t1 instanceof tester); System.out.println( t2 instanceof tester); System.out.println( t3 instanceof tester); System.out.println( t1 instanceof test); System.out.println( t2 instanceof test); System.out.println( t3 instanceof test); }

  1. True False True True True True

  2. True False False True True True

  3. True False True True True False

  4. True False True True False True
Reveal answer Fill a bubble to check yourself
A Correct answer
Full explanation
Multiple choice technology programming languages

class Root { int bark=10; public void get(){ System.out.println("Root"); } } public class Tree extends Root{ public void get(){ bark =15; System.out.println("Tree"); } public static void main(String[] args){ Tree t = new Tree(); Root r = new Root(); Root t1= new Tree(); r.get(); t.get(); t1.get(); System.out.println(t.bark); System.out.println(t1.bark); System.out.println(r.bark); } }

  1. Root Tree Tree 15 15 15

  2. Root Tree Tree 10 15 15

  3. Root Tree Root 15 15 10

  4. Root Tree Tree 15 15 10

  5. Root Tree Tree 15 10 10
Reveal answer Fill a bubble to check yourself
D Correct answer
Full explanation