What will be the output of the following Java program?
import java.util.*;
class Collection_iterators
{
public static void main(String args[])
{
LinkedList list = new LinkedList();
list.add(new Integer(2));
list.add(new Integer(8));
list.add(new Integer(5));
list.add(new Integer(1));
Iterator i = list.iterator();
Collections.reverse(list);
while(i.hasNext())
System.out.print(i.next() + " ");
}
}
import java.util.*;
class Collection_iterators
{
public static void main(String args[])
{
LinkedList list = new LinkedList();
list.add(new Integer(2));
list.add(new Integer(8));
list.add(new Integer(5));
list.add(new Integer(1));
Iterator i = list.iterator();
Collections.reverse(list);
while(i.hasNext())
System.out.print(i.next() + " ");
}
}A. 2 8 5 1
B. 1 5 8 2
C. 2
D. 2 1 8 5
Answer: Option B
This Question Belongs to Java Program >> Collections Framework In Java
What is the purpose of the Java Collections Framework?
A. To provide a unified architecture for representing and manipulating collections
B. To provide a way to create arrays
C. To define primitive data types
D. To handle exceptions
A. `Collection`
B. `Map`
C. `Set`
D. `List`
What is the primary difference between a `List` and a `Set` in the Java Collections Framework?
A. A `Set` allows duplicate elements, while a `List` does not
B. A `List` is unmodifiable, while a `Set` is modifiable
C. A `List` allows duplicate elements, while a `Set` does not
D. A `Set` is indexed, while a `List` is not
Which class is typically used to implement a `List` in the Java Collections Framework?
A. `HashMap`
B. `ArrayList`
C. `LinkedList`
D. None of These
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