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 is final or 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 declare multiple resources in 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 <strong>readData</strong>(String message) throws IOException {
      <strong>try</strong>(Reader inputString = new StringReader(message);
      BufferedReader br = new BufferedReader(inputString)) {
         return br.readLine();
      }
   }
}

Output

<strong>test</strong>

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