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Java Exercises

Java Collection, LinkedList Exercises: Test an linked list is empty or not

Java Collection, LinkedList Exercises: Exercise-25 with Solution

Write a Java program to test an linked list is empty or not.

Sample Solution:-

Java Code:

import java.util.LinkedList;
import java.util.Collections;
  public class Exercise25 {
  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);
          System.out.println("Check the above linked list is empty or not! "+c1.isEmpty());
          c1.removeAll(c1);
          System.out.println("Linked list after remove all elements "+c1);   
          System.out.println("Check the above linked list is empty or not! "+c1.isEmpty());
   }
}

Sample Output:

Original linked list: [Red, Green, Black, White, Pink]                 
Check the above linked list is empty or not! false                     
Linked list after remove all elements []                               
Check the above linked list is empty or not! true 

Flowchart:

Flowchart: Test an linked list is empty or not

Java Code Editor:

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