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Java Collection, LinkedList Exercises: Replace an element in a linked list

Java Collection, LinkedList Exercises: Exercise-26 with Solution

Write a Java program to replace an element in a linked list.

Sample Solution:-

Java Code:

import java.util.LinkedList;
import java.util.Collections;
  public class Exercise18 {
  public static void main(String[] args) {
          LinkedList<String> c1= new LinkedList<String>();
          c1.add("Red");
          c1.add("Green");
          c1.add("Black");
          c1.add("White");
          c1.add("Pink");
          System.out.println("Original linked list: " + c1);
          // Replacing 2nd element with new value
          c1.set(1, "Orange");
          System.out.println("The value of second element changed.");
          System.out.println("New linked list: " + c1);
   }
}

Sample Output:

Original linked list: [Red, Green, Black, White, Pink]                 
The value of second element changed.                                   
New linked list: [Red, Orange, Black, White, Pink]

Pictorial Presentation:

Java Collection Linked-list: Replace an element in a linked list.

Flowchart:

Flowchart: Replace an element in 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