An alternative to the try-with-resources statement

Java 7 introduced AutoCloseable and the try-with-resources statement for automatic resource management. Pre-Java 7 code required manual resource management, often leading to verbosity and potential errors. Here’s a pre-Java 7 example:

BufferedReader br = null;
try {
    br = new BufferedReader(new FileReader("./path/to/file"));
    System.out.println(br.readLine());
} finally {
    if (br != null) {
        br.close();
    }
}

Post-Java 7, this code can be simplified using try-with-resource syntax:

try (BufferedReader br = new BufferedReader(new FileReader("/some/path"))) {
    System.out.println(br.readLine());
}

Kotlin replaces try-with-resources with the use() function:

val br = BufferedReader(FileReader("./path/to/file"))
br.use {
    println(it.readLines())
}

In this example, the BufferedReader is automatically closed at the end of the use{} block, similar to Java...