What is the file extension for Java code files?

Which function is used to get a single character from a string in Java?

  Two or more method having the same name can be differentiated on the basis of the number of parameters 

Which interface does java.util.Hashtable implement?

Which feature of Java 7 allows you to not explicitly close I/O resources?

Which method of InputStream is used to read integer representation of next available byte input?

 If there is any return statement present inside try or catch block , and finally block is also present which statement will be executed first?

Can we override a method in Java by using the same method name and arguments but different return types?

What will be the output of the following Java program?

import java.net.*;

public class Networking

{

public static void main(String[] args) throws Exception

{

URL obj = new URL("https://www.sanfoundry.com/javamcq");

URLConnection obj1 = obj.openConnection();

System.out.print(obj1.getContentType());

}

}