Java Operators Questions and Answers

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1. Which of the following can be operands of arithmetic operators?

[A] Numeric

[B] Boolean

[C] Characters

[D] Both Boolean & Characters

2. What is the output of the program.

class operators {



        public static void main(String args[]) 



        {    



             int x = 8;



             System.out.println(++x * 3 + "," + x);



        } 



    }

[A] 24,8

[B] 24,9

[C] 27,8

[D] 27,9

3. What is the output of the program.

public class Test 



{ 



    public static void leftshift(int i, int j) 



    {



  i <<= j; 



    } 



    public static void main(String args[]) 



    {



        int i = 4, j = 2; 



        leftshift(i, j); 



        System.out.printIn(i); 



    } 



}

[A] 2

[B] 4

[C] 8

[D] 16

4. what is the output of the program ?

class Equals 



{



public static void main(String [] args) 



    {



        int x = 100;



        double y = 100.1;



        boolean b = (x = y);



        System.out.println(b);



    }



}

[A] true

[B] false

[C] Compilation fails

[D] An exception is thrown at run time

5. What is the output of the program ?

class Test 



{



public static void main(String [] args) 



{



        int x=20;



       String sup = (x < 15) ? "small" : (x < 22)? "tiny" : "huge";



        System.out.println(sup);



    }



}

[A] small

[B] tiny

[C] huge

[D] compilaton fails

6. Modulus operator, %, can be applied to which of these?

[A] Integers

[B] Floating – point numbers

[C] Both Integers and floating – point numbers

[D] None of the mentioned

7. Decrement operator, –, decreases value of variable by what number?

[A] 1

[B] 2

[C] 3

[D] 4

8. Which of these statements are incorrect?

[A] Assignment operators are more efficiently implemented by Java run-time system than their equivalent long forms.

[B] Assignment operators run faster than their equivalent long forms

[C] Assignment operators can be used only with numeric and character data type

[D] None

9. What is the output of this program?

class increment {



        public static void main(String args[]) 



        {        



             int g = 3;



             System.out.print(++g * 8);



        } 



    }

[A] 25

[B] 24

[C] 32

[D] 33

10. Which of these is not a bit-wise operator?

[A] &

[B] &=

[C] |=

[D] <=

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Java Operators Questions and Answers

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