Java英文面试问答（二）

3. What are the features in Java?

The features of Java are:

Oops concepts:

• Object-oriented

• Inheritance

• Encapsulation

• Polymorphism

• Abstraction

4. How Java enhances the performance of applications?

Java enhances the performance of applications by using Just in Time compiler, which converts the instructions into bytecodes.

5. What is a Class?

A class is use to refer to variables and methods which is used to define all Java codes. Variables are the features that define the state of a class. Methods are used to perform business logic. It is where the a set of statements or instructions are stored to execute a particular function.