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Java Collection, LinkedList Exercises: Remove all the elements from a linked list

Java Collection, LinkedList Exercises: Exercise-14 with Solution

Write a Java program to remove all the elements from a linked list.

Sample Solution:-

Java Code:

import java.util.*;
  public class Exercise14 {
  public static void main(String[] args) {
    // create an empty linked list
     LinkedList<String> l_list = new LinkedList<String>();
   // use add() method to add values in the linked list
          l_list.add("Red");
          l_list.add("Green");
          l_list.add("Black");
          l_list.add("Pink");
          l_list.add("orange");
      
     // print the list
   System.out.println("The Original linked list: " + l_list);

  // Removing all the elements from the linked list
    l_list.clear();
 
    System.out.println("The New linked list: " + l_list);
  }
}

Sample Output:

The Original linked list: [Red, Green, Black, Pink, orange]            
The New linked list: []

Pictorial Presentation:

Java Collection Linked-list: Remove all the elements from a linked list.

Flowchart:

Flowchart: Remove all the elements from a linked list

Java Code Editor:

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Java: Tips of the Day

getEnumMap

Converts to enum to Map where key is the name and value is Enum itself. 

public static <E extends Enum<E>> Map<String, E> getEnumMap(final Class<E> enumClass) {
    return Arrays.stream(enumClass.getEnumConstants())
            .collect(Collectors.toMap(Enum::name, Function.identity()));
}

Ref: https://bit.ly/3xXcFZt