41. What will be the output of the following Java code?
import java.util.*;
class Bitset
{
public static void main(String args[])
{
BitSet obj = new BitSet(5);
for (int i = 0; i < 5; ++i)
obj.set(i);
obj.clear(2);
System.out.print(obj.length() + " " + obj.size());
}
}
import java.util.*;
class Bitset
{
public static void main(String args[])
{
BitSet obj = new BitSet(5);
for (int i = 0; i < 5; ++i)
obj.set(i);
obj.clear(2);
System.out.print(obj.length() + " " + obj.size());
}
}42. What will be the output of the following Java program?
import java.util.*;
class Array
{
public static void main(String args[])
{
int array[] = new int [5];
for (int i = 5; i > 0; i--)
array[5 - i] = i;
Arrays.sort(array);
for (int i = 0; i < 5; ++i)
System.out.print(array[i]);;
}
}
import java.util.*;
class Array
{
public static void main(String args[])
{
int array[] = new int [5];
for (int i = 5; i > 0; i--)
array[5 - i] = i;
Arrays.sort(array);
for (int i = 0; i < 5; ++i)
System.out.print(array[i]);;
}
}43. Which of these methods can be used to move to next element in a collection?
44. Which of this method is used to change an element in a LinkedList Object?
45. What will be the output of the following Java program?
import java.util.*;
class Linkedlist
{
public static void main(String args[])
{
LinkedList obj = new LinkedList();
obj.add("A");
obj.add("B");
obj.add("C");
obj.removeFirst();
System.out.println(obj);
}
}
import java.util.*;
class Linkedlist
{
public static void main(String args[])
{
LinkedList obj = new LinkedList();
obj.add("A");
obj.add("B");
obj.add("C");
obj.removeFirst();
System.out.println(obj);
}
}46. What will be the output of the following Java code?
import java.util.*;
class vector
{
public static void main(String args[])
{
Vector obj = new Vector(4,2);
obj.addElement(new Integer(3));
obj.addElement(new Integer(2));
obj.addElement(new Integer(5));
obj.removeAll(obj);
System.out.println(obj.isEmpty());
}
}
import java.util.*;
class vector
{
public static void main(String args[])
{
Vector obj = new Vector(4,2);
obj.addElement(new Integer(3));
obj.addElement(new Integer(2));
obj.addElement(new Integer(5));
obj.removeAll(obj);
System.out.println(obj.isEmpty());
}
}47. What will be the output of the following Java code?
import java.util.*;
class hashtable
{
public static void main(String args[])
{
Hashtable obj = new Hashtable();
obj.put("A", new Integer(3));
obj.put("B", new Integer(2));
obj.put("C", new Integer(8));
obj.remove(new String("A"));
System.out.print(obj);
}
}
import java.util.*;
class hashtable
{
public static void main(String args[])
{
Hashtable obj = new Hashtable();
obj.put("A", new Integer(3));
obj.put("B", new Integer(2));
obj.put("C", new Integer(8));
obj.remove(new String("A"));
System.out.print(obj);
}
}48. Which of these classes implements Set interface?
49. Which of this interface is not a part of Java's collection framework?
50. Which of this method is used to make all elements of an equal to specified value?
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