What is meant by native class?

A native method is a Java method (either an instance method or a class method) whose implementation is also written in another programming language such as C/C++. Moreover, a method marked as native cannot have a body and should end with a semicolon: [ public | protected | private] native [return_type] method ();

What is a native method in Java?

A native method in Java is a method whose implementation is written in other languages such as c and c++. The ‘native’ keyword is used before a method to indicate that it is implemented in other language.

Why is Java native?

In software design, the Java Native Interface (JNI) is a foreign function interface programming framework that enables Java code running in a Java virtual machine (JVM) to call and be called by native applications (programs specific to a hardware and operating system platform) and libraries written in other languages …

Is native a keyword?

The native keyword is applied to a method to indicate that the method is implemented in native code using JNI (Java Native Interface). native is a modifier applicable only for methods and we can’t apply it anywhere else.

What is a mutable class in Java?

A mutable object can be changed after it’s created, and an immutable object can’t. In Java, everything (except for strings) is mutable by default: public class IntegerPair { int x; int y; IntegerPair(int x, int y) { this.

What do you mean by polymorphism in Java?

Polymorphism in Java is the ability of an object to take many forms. To simply put, polymorphism in java allows us to perform the same action in many different ways.

What does native mean in technology?

In computer systems, native means “original” or “basic.” Here are several usages: If the same program is run on a computer with a different processor, software can be provided so that the computer emulates the old processor.