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
Create a new ArrayList from another collection in Java
An ArrayList can be created from another collection using the java.util.Arrays.asList() method. A program that demonstrates this is given as follows −
Example
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class Demo {
public static void main(String args[]) throws Exception {
String str[] = { "John", "Macy", "Peter", "Susan", "Lucy" };
List aList = new ArrayList(Arrays.asList(str));
System.out.println("The ArrayList elements are: " + aList);
}
}Output
The ArrayList elements are: [John, Macy, Peter, Susan, Lucy]
Now let us understand the above program.
The string array str[] is defined. Then an ArrayList is created using the Arrays.asList(). The ArrayList is displayed. A code snippet which demonstrates this is as follows −
String str[] = { "John", "Macy", "Peter", "Susan", "Lucy" };
List aList = new ArrayList(Arrays.asList(str));
System.out.println("The ArrayList elements are: " + aList);
Updated on: 30-Jul-2019
272 Views
Advertisements