Write a Java Program to Access elements from a LinkedList

In Java, a LinkedList is a data structure that stores a collection of elements in a sequence.

It is similar to an array but has the advantage of dynamic size and efficient insertion and deletion of elements.

To access elements from a LinkedList, you can use the get() method provided by the LinkedList class.

The get() method returns the element at a specified index in the LinkedList.

Here’s a simple Java program that demonstrates how to access elements from a LinkedList:

import java.util.LinkedList;

public class AccessLinkedListElements {
   public static void main(String[] args) {
      // Create a LinkedList of integers
      LinkedList<Integer> numbers = new LinkedList<>();
      numbers.add(10);
      numbers.add(20);
      numbers.add(30);
      numbers.add(40);
      numbers.add(50);

      // Access elements using the get() method
      System.out.println("Element at index 0: " + numbers.get(0));
      System.out.println("Element at index 2: " + numbers.get(2));
      System.out.println("Element at index 4: " + numbers.get(4));
   }
}

In the above program, we first create a LinkedList of integers and add some elements to it.

Then, we use the get() method to access the elements at index 0, 2, and 4 and print them to the console.

Output:

Element at index 0: 10
Element at index 2: 30
Element at index 4: 50

Note that the get() method throws an IndexOutOfBoundsException if the index is out of range (index < 0 || index >= size()).

Therefore, you should always check the size of the LinkedList before accessing its elements using the get() method.

In conclusion, accessing elements from a LinkedList in Java is straightforward.

You can use the get() method to access the elements at a specified index.

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