Free Oracle 1Z0-808 Exam Questions

Given the code fragment:

Range of short data type is from -32768 to 32767

Which of the following code segments, written inside main method will compile successfully?

Select 3 options.

Given:

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

package com.udayan.oca;

public class Test {

    public static void main(String[] args) {

        m1(null);

    }

    static void m1(CharSequence s) {

        System.out.println("CharSequence");

    }

    static void m1(String s) {

        System.out.println("String");

    }

    static void m1(Object s) {

        System.out.println("Object");

    }

}

Consider below code of Test.java file:

1. package com.sampleproject.oca;

2.  

3. class Super {

4.     public String num = "10"; //Line n1

5. }

6.  

7. class Sub extends Super {

8.     protected int num = 20; //Line n2

9. }

10.  

11. public class Test {

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

13.         Super obj = new Sub();

14.         System.out.println(obj.num += 2); //Line n3

15.     }

16. }

What will be the result of compiling and executing above code?