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Vector size() Method in Java

Last Updated : 11 Jul, 2025
The java.util.vector.size() method in Java is used to get the size of the Vector or the number of elements present in the Vector. Syntax: 
Vector.size()
Parameters: The method does not take any parameter. Return Value: The method returns the size or the number of elements present in the Vector. Below programs illustrate the Java.util.Vector.size() method: Program 1: Vector with string elements.
Output: 
Vector: [Welcome, To, Geeks, 4, Geeks]
The size is: 5
Program 2: Vector with integer elements.
Output: 
Vector: [10, 15, 30, 20, 5]
The size is: 5
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