Category: Java Interview Questions

We get two major things along with the Java Download file. 

JDK – Java Development Kit

JRE – Java Runtime Environment

JDK	JRE
Abbreviation for JavaDevelopment Kit	Abbreviation for Java Runtime Environment
JDK is a dedicated kit for solely software development	JRE is a set of software and library designed for executing Java Programs
Unlike JVM, JDK is Platform Dependent	Unlike JVM, JRE is also Platform Dependent
JDK package is a set of tools for debugging and Developing	JRE Package is one that only supports files and libraries for a runtime environment
JDK package will be provided with an installer file	JRE Package does not get an installer but has only a runtime environment

A few of the significant features of Java Programming Language are:

Easy: Java is a language that is considered easy to learn. One fundamental concept of OOP Java has a catch to understand.

Secured Feature: Java has a secured feature that helps develop a virus-free and tamper-free system for the users.

OOP: OOP stands for Object-Oriented Programming language. OOP signifies that, in Java, everything is considered an object.

Independent Platform: Java is not compiled into a platform-specific machine; instead, it is compiled into platform-independent bytecode. This code is interpreted by the Virtual Machine on which the platform runs.

• Concept.

C++ is not platform-independent; the principle behind C++ programming is “write once, compile anywhere.”

In contrast, because the byte code generated by the Java compiler is platform-independent, it can run on any machine, Java programs are written once and run everywhere.

Also Read: Learn C++ Programming

• Languages Compatibility.

C++ is a programming language that is based on the C programming language. Most other high-level languages are compatible with C++.

Most of the languages of Java are incompatible. Java is comparable to those of C and C++.

• Interaction with the library.

It can access the native system libraries directly in C++. As a result, it’s better for programming at the system level.

Java’s native libraries do not provide direct call support. You can use Java Native Interface or access the libraries.

Characteristics.

C++ distinguishes itself by having features that are similar to procedural and object-oriented languages. The characteristic that sets Java apart is automatic garbage collection. Java doesn’t support destructors at the moment.

• The semantics of the type.

Primitive and object types in C++ have the same kind of semantics. The primitive and object and classes of Java, on the other hand, are not consistent.

• In the context of Compiler and Interpreter.

Java refers to a compiled and interpreted language. In contrast, C++ is only a compiled language.

In Java, the source code is the compiled output is a platform-independent byte code.

In C++, the source program is compiled into an object code that is further executed to produce an output.