A Runnable is a Interface

In java 'String' is a :

  combining methods and attribute 

What is the Java Virtual Machine (JVM)?

Array is stored in which memory space

Which of the following methods returns a value as a double?

Predict the output of the following Java code that creates a jagged array.

The Stream is classified into 

What is the purpose of the throws keyword in Java?

What happens if a concrete class provides an implementation for a method defined in an interface?