VOOZH about

URL: https://www.geeksforgeeks.org/java/vector-isempty-method-in-java/

⇱ Vector isEmpty() Method in Java - GeeksforGeeks

  • Courses
  • Tutorials
  • Interview Prep

Vector isEmpty() Method in Java

Last Updated : 11 Jul, 2025

The Java.util.Vector.isEmpty() method in Java is used to check and verify if a Vector is empty or not. It returns True if the Vector is empty else it returns False. 

Syntax:

Vector.isEmpty()

Parameters: This method does not take any parameter. 

Return Value: This function returns True if the Vectoris empty else it returns False. 

Below programs illustrate the Java.util.Vector.isEmpty() method: 

Program 1: 

Output:
Vector: [Welcome, To, Geeks, 4, Geeks]
Is the Vector empty? false
Vector after clear(): []
Is the Vector empty? true

Program 2: 

Output:
Vector: []
Is the Vector empty? true

Time complexity: O(1).
Auxiliary Space: O(1).

Comment