How to implement automatic resource closing using try-with-resources construct?

In Java, the try-with-resources statement is used for automatically closing resources that implement the AutoCloseable interface (such as input/output streams, database connections). Resources declared in the parentheses after the try keyword are automatically closed after the block finishes, even if an exception occurs inside the block.

Example:

try (BufferedReader reader = new BufferedReader(new FileReader("file.txt"))) {
    String line = reader.readLine();
    System.out.println(line);
} catch (IOException e) {
    e.printStackTrace();
}
// reader is automatically closed here

This eliminates the need to explicitly call close() and reduces the risk of resource leaks.