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
How to declare multiple resources in a try-with-resources statement in Java 9?
Try-with-resources statement has been improved in Java 9. If we already have a resource that is final or equivalent to the final variable, then we can use that variable in a try-with-resources statement without having to declare a new variable in a try-with-resources statement.
We can declare multiple resources in a try block. Try initialization block can have any number of resources resulting in either null or non-null resources.
In the below example, we can able to declare multiple resources in the try-with-resources statement.
Example
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
public class MultipleResourcesTest {
public static void main(String args[]) throws IOException {
System.out.println(readData("test"));
}
static String readData(String message) throws IOException {
try(Reader inputString = new StringReader(message);
BufferedReader br = new BufferedReader(inputString)) {
return br.readLine();
}
}
}Output
test
Updated on: 21-Apr-2020
943 Views
Advertisements