class getresourceasstream

`getResourceAsStream` is a method in the `java.lang.Class` class that is used to obtain an input stream for reading a resource file from the classpath. It allows you to access files that are packaged with your application or in a resource directory.

Here's an example of how you can use `getResourceAsStream`:

InputStream inputStream = getClass().getResourceAsStream("/path/to/resource.txt");

In this example, `/path/to/resource.txt` is the path to the resource file you want to access. The leading slash `/` indicates that the path is absolute, starting from the root of the classpath.

You can then use the `InputStream` to read the contents of the resource file. Remember to handle exceptions appropriately when working with input streams.