Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
What does the method trimToSize() do in java?
The trimToSize() method of the java.util.ArrayList class trims the capacity of this ArrayList instance to be the list's current size. An application can use this operation to minimize the storage of an ArrayList instance.
Example
import java.util.ArrayList;
public class ArrayListDemo {
public static void main(String args[]) {
ArrayList<Integer> arrlist = new ArrayList<Integer>(5);
arrlist.add(35);
arrlist.add(20);
arrlist.add(25);
arrlist.trimToSize();
for (Integer number : arrlist) {
System.out.println("Number = " + number);
}
}
}Output
Number = 35 Number = 20 Number = 25
Updated on: 20-Feb-2020
97 Views
Advertisements