56. Which of the following method of Process class can terminate a process?

1. 1. void exit()

   
   
   

   2. void terminate()

   
   
   

   3. void kill()

   
   
   

   4. void destroy()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Kills the subprocess. The subprocess represented by this Process object is forcibly terminated.

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57. Which of these class have only one field ‘TYPE’?

1. 1. System

   
   
   

   2. Runtime

   
   
   

   3. Process

   
   
   

   4. Void

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   The Void class has one field, TYPE, which holds a reference to the Class object for the type void.

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58. What is the output of this program?
    

    public class Result 
        {
            public static void main(String args[]) 
            {
                Integer n = new Integer(260);  
                byte p = n.byteValue();
                System.out.print(p);
            }
        }
    

1. 1. 0

   
   
   

   2. 1

   
   
   

   3. 2

   
   
   

   4. 3

   
   
   

   5. 4

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   n.byteValue() method returns the value of wrapper i as a byte value. n is 260, range of byte is 256 therefore n value exceeds byte range by 4 hence 4 is returned and stored in p.

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59. What is the output of this program?
    

    public class Result 
        {
            public static void main(String args[]) 
            {
                char array[] = {'P', '8', 'Q', ' '};   
                System.out.print(Character.isDigit(array[1]) + " ");
                System.out.print(Character.isWhitespace(array[2]) + " ");
                System.out.print(Character.isUpperCase(array[0]));
            }
        }
    

1. 1. true false true

   
   
   

   2. false true true

   
   
   

   3. true true true

   
   
   

   4. false false false

   
   
   

   5. false true false

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Character.isDigit(a[1]) checks for array[1], whether it is 8 digit or not, since array[1] i:e ‘8’ is a digit true is returned. array[4] is a whitespace hence Character.isWhitespace(array[2]) returns a false. array[0] is an uppercase letter i:e ‘P’ hence Character.isUpperCase(array[0]) returns true.

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60. Which of the following methods is a method of wrapper Integer for obtaining hash code for the invoking object?

1. 1. Integer hashcode()

   
   
   

   2. int hash()

   
   
   

   3. int hashcode()

   
   
   

   4. int hashCode()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   int hashCode()

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