How to Resolve the \'Resource leak: \'in\' is never closed\' Warning in Eclipse?

Warning and Resolution: "Resource leak: 'in' is never closed"

Eclipse generates the "Resource leak: 'in' is never closed" warning when a resource, such as a file or network connection, is not properly closed after being opened. This warning indicates a potential memory leak and should be addressed promptly.

In the provided code snippet:

public void readShapeData() {
    Scanner in = new Scanner(System.in);
    System.out.println("Enter the width of the Rectangle: ");
    width = in.nextDouble();
    System.out.println("Enter the height of the Rectangle: ");
    height = in.nextDouble();
}

The in variable is an instance of the Scanner class, which is used to read input from a source, in this case, the standard input (System.in). The Scanner class implements the Closeable interface, which provides a close() method used to release any resources held by the Scanner.

To resolve the warning, you need to explicitly close the Scanner object after you have finished using it. This can be achieved by adding the following line to the end of the readShapeData() method:

in.close();

By closing the Scanner, you ensure that any held resources, such as file handles or network connections, are released, preventing memory leaks and potential resource exhaustion.

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