Java Program to Remove elements from the LinkedList

In this article, we will understand how to remove elements from the linked-list.

The java.util.LinkedList class operations perform we can expect for a doubly-linked list. Operations that index into the list will traverse the list from the beginning or the end, whichever is closer to the specified index.

Below is a demonstration of the same −

Suppose our input is −

The list is defined as: [Java, Scala, Python, JavaScript, C++]

The desired output would be −

The list after removing all the elements is: [Python, JavaScript, C++]

Algorithm

Step 1 - START
Step 2 - Declare namely
Step 3 - Define the values.
Step 4 - Display the result
Step 5 - Stop

Example 1

Here, we bind all the operations together under the ‘main’ function.

import java.util.LinkedList;
public class Demo {
   public static void main(String args[]){
      LinkedList<String> input_list = new LinkedList<String>();
      input_list.add("Java");
      input_list.add("Scala");
      input_list.add("Python");
      input_list.add("JavaScript");
      input_list.add("C++");
      System.out.println("The list is defined as: " + input_list);
      input_list.remove();
      input_list.remove();
      System.out.println("The list after removing all the elements is: " + input_list);
   }
}

Output

The list is defined as: [Java, Scala, Python, JavaScript, C++]
The list after removing all the elements is: [Python, JavaScript, C++]

Example 2

Here, we encapsulate the operations into functions exhibiting object oriented programming.

import java.util.LinkedList;
public class Demo {
   static void remove_element(LinkedList<String> input_list){
      input_list.remove();
      input_list.remove();
      System.out.println("The list after removing all the elements is: " + input_list);
   }
   public static void main(String args[]){
      LinkedList<String> input_list = new LinkedList<String>();
      input_list.add("Java");
      input_list.add("Scala");
      input_list.add("Python");
      input_list.add("JavaScript");
      input_list.add("C++");
      System.out.println("The list is defined as: " + input_list);
      remove_element(input_list);
   }
}

Output

The list is defined as: [Java, Scala, Python, JavaScript, C++]
The list after removing all the elements is: [Python, JavaScript, C++]