31. What is the process of defining more than one method in a class differentiated by method signature?

1. 1. Function doubling

   
   
   

   2. Method overloading

   
   
   

   3. Function overloading

   
   
   

   4. Function overriding

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Function overloading is a process of defining more than one method in a class with same name differentiated by function signature i:e return type or parameters type and number.

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32. What is the return type of a method that does not returns any value?

1. 1. float

   
   
   

   2. void

   
   
   

   3. double

   
   
   

   4. int

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Return type of an method must be made void if it is not returning any value.

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33. Which of these methods can be used to check whether the given value is a number or not?

1. 1. checkNumber()

   
   
   

   2. isNaN()

   
   
   

   3. isNumber()

   
   
   

   4. checkNaN()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   isNaN() methods returns true if num specified is not a number, otherwise it returns false.

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34. What is the output of this program?
    

    public class Result 
        {
            public static void main(String args[]) 
            {
                double num0 = 205;
                double num1 = 2;
                double num2 = Math.IEEEremainder(num0, num1);
                System.out.print(num2);
                
             }
        }
    

1. 1. 250

   
   
   

   2. 2

   
   
   

   3. 11

   
   
   

   4. 1.0

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   IEEEremainder() returns the remainder of dividend / divisor. Here dividend is 205 and divisor is 2 therefore remainder is 1.0. It is similar to modulus – ‘%’ operator of C/C++ language.

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35. What is the output of this program?
    

    public class Result
        {
            public static void main(String args[]) 
            {
                double num =3.14;  
                int p = (int) Math.toRadians(num);
                System.out.print(p);
            }
        }
    

1. 1. 0

   
   
   

   2. 1

   
   
   

   3. 3.14

   
   
   

   4. 3

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   0

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