Higher Test Marks with Free Online 1Z0-809 Exam Practice

Given:

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

1. package com.udayan.ocp;

2.  

3. class M {

4.     private int num1 = 100;

5.     class N {

6.         private int num2 = 200;

7.     }

8.     

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

10.         M outer = new M();

11.         M.N inner = outer.new N();

12.         System.out.println(outer.num1 + inner.num2);

13.     }

14. }

The last statement inside main(String []) method, increments value of i, which means it is not effectively final and hence compilation error.

//Test.java

package com.udayan.ocp;

class Player {

    String name;

    int age;

    Player() {

        this.name = "Virat";

        this.age = 29;

    }

    public int hashCode() {

        return 100;

    }

}

public class Test {

    public static void main(String[] args) {

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

    }

}

Hexadecimal representation of 100 is 64.

Which of the following option is correct?

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. import java.util.Arrays;

4. import java.util.List;

5. import java.util.ListIterator;

6.  

7. public class Test {

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

9.         List list = Arrays.asList("T", "S", "R", "I", "F");

10.         ListIterator iter = list.listIterator(2);

11.         while(iter.hasNext()) {

12.             System.out.print(iter.next());

13.         }

14.     }

15. }

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.util.*;

4.  

5. public class Test {

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

7.         NavigableMap map = new TreeMap<>();

8.         map.put(25, "Pune");

9.         map.put(32, "Mumbai");

10.         map.put(11, "Sri Nagar");

11.         map.put(39, "Chennai");

12.  

13.         System.out.println(map.headMap(25, true));

14.     }

15. }