How to declare multiple resources in try-with-resources statement in Java 9?

In Java 9, the Try-with-resources statement has been improved. If we already have a resource that isfinalor equivalent to a final variable, then we can use that variable in the try-with-resources statement without declaring a new variable in the try-with-resources statement .

We can declaremultiple resourcesin the try block. The try initialization block can have any number of resources, which can be null or non-null.

In the following example, we can 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

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