Free Oracle 1Z0-809 Exam Questions

Consider the code of Test.java file:

1. package com.udayan.ocp;

2.  

3. class Player {

4.     String name;

5.     int age;

6.  

7.     Player() {

8.         this.name = "Yuvraj";

9.         this.age = 36;

10.     }

11.  

12.     public String toString() {

13.         return name + ", " + age;

14.     }

15.     

16.     public Class getClass() { 

17.         return super.getClass();

18.     }

19. }

20.  

21. public class Test {

22.     public static void main(String[] args) {

23.         System.out.println(new Player());

24.     }

25. }

What will be the result of compiling and executing Test class?

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. public class Test {

4.     private static void div(int i, int j) {

5.         try {

6.             System.out.println(i / j);

7.         } catch(ArithmeticException e) {

8.             throw (RuntimeException)e;

9.         }

10.     }

11.     public static void main(String[] args) {

12.         try {

13.             div(5, 0);

14.         } catch(ArithmeticException e) {

15.             System.out.println("AE");

16.         } catch(RuntimeException e) {

17.             System.out.println("RE");

18.         }

19.     }

20. }

What will be the result of compiling and executing Test class?

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. import java.time.*;

4.  

5. public class Test {

6.     public static void main(String [] args) {

7.         System.out.println(Duration.ofDays(-2));

8.     }

9. }

What will be the result of compiling and executing Test class?

Given code of Test.java file: 

package com.udayan.ocp;

import java.util.concurrent.*;

public class Test {

    public static void main(String[] args) throws InterruptedException, ExecutionException {

        ExecutorService es = Executors.newSingleThreadExecutor();

        Future f = es.submit(() -> "HELLO");

        System.out.println(f.get());

        es.shutdown();

    }

}

What will be the result of compiling and executing Test class?