Tag: programming languages

Quizzes (351) Questions (7021)

Questions Related to programming languages

Multiple choice technology programming languages

Which of the following statements about this code are true? class A extends Thread{ public void run(){ for(int i =0; i < 2; i++){ System.out.println(i); } } } public class Test{ public static void main(String argv[]){ Test t = new Test(); t.check(new A(){}); } public void check(A a){ a.start(); } }

  1. 0 0

  2. Compilation error, class A has no start method

  3. 0 1

  4. Compilation succeed but runtime exception
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation
Multiple choice technology programming languages

What is the output for the below code ? class A implements Runnable{ public void run(){ System.out.println("run-a"); } } 1. public class Test { 2. public static void main(String... args) { 3. A a = new A(); 4. Thread t = new Thread(a); 5. t.start(); 6. t.start(); 7. } 8. }

  1. run-a

  2. run-a run-a

  3. Compilation fails with an error at line 6

  4. Compilation succeed but Runtime Exception
Reveal answer Fill a bubble to check yourself
D Correct answer
Full explanation