26. Which of these method of Array class is used sort an array or its subset?

1. 1. insert()

   
   
   

   2. bubblesort()

   
   
   

   3. binarysort()

   
   
   

   4. sort()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   sort()

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27. Which of this method is used to make all elements of an equal to specified value?

1. 1. set()

   
   
   

   2. add()

   
   
   

   3. fill()

   
   
   

   4. all()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   fill() method assigns a value to all the elements in an array, in other words, it fills the array with specified value.

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28. Which of these standard collection classes implements all the standard functions on list data structure?

1. 1. AbstractSet

   
   
   

   2. HashSet

   
   
   

   3. LinkedList

   
   
   

   4. Array

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Array

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29. What is the output of this program?
    

    
    public class Result
     {
      public static void main(String[] args) 
       {
       int []p[] = {{1,2}, {3,4,5}, {6,7,8,9}};
       int [][]q = p;
       System.out.println("Alligator");
       System.out.println(q[0][0]);
       }
     }
    

    
    

1. 1. Alligator
      1

   
   
   

   2. Alligator
      2

   
   
   

   3. Alligator
      3

   
   
   

   4. Alligator
      4

   
   
   

   5. Alligator
      5

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Both p,and q are pointing to the same array.

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30. What is the output of this program?
    

    
    public class Result
        {
            public static void main(String args[])
            {
                int array1[] = new int[8];
                int array2[] = {5, 8, 7, 6, 9};
                System.out.println(array1.length + " " + array2.length);
            } 
        }
    

1. 1. 9 5

   
   
   

   2. 5 9

   
   
   

   3. 8 5

   
   
   

   4. 5 8

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Arrays in java are implemented as objects, they contain an attribute that is length which contains the number of elements that can be stored in the array. Hence array1.length gives 8 and array2.length gives 5.
   output: 8 5

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