JAVA

java resource file

File file = new File(
	getClass().getClassLoader().getResource("database.properties").getFile()
);

java resource file

InputStream inputStream = getClass()
		.getClassLoader().getResourceAsStream("database.properties");

java resource file

ClassLoader classloader = Thread.currentThread().getContextClassLoader();
InputStream is = classloader.getResourceAsStream("test.csv");