Java

Difference Between Java And C++

You will discover the distinctions between C++ and Java in this article. These programming languages share a lot in common and differ greatly from one another.

Let’s look at the fundamental information about each of these programming languages before we compare them.

C++ language

The idea of object-oriented programming was initially presented in the C++ programming language, which also gave rise to the concept of classes and objects in general. Because it was created as an improved, more advanced version of C with additional object-oriented capabilities, C++ was first known as “C with classes.”

Bjarne Stroustrup created the C++ programming language at AT & T Bell Laboratories. Cfront, the first available commercial C++ compiler, was made available in 1985.

Java language

James Gosling created the Java programming language at Sun Microsystems in the early 1990s. Java was first created for digital gadgets like TV remotes and set-top boxes.

James Gosling gave the Java project the original moniker “Greentalk,” which was eventually changed to “Oak.” Sun Microsystems changed the name from Oak to Java once again in 1995 since “Oak” was already a registered trademark of another company.

C++ vs Java

DESCRIPTION C++ JAVA
Compiler & Interpreter C++ only supports compiler. C++ program is compiled and run by the compiler, which converts the source code into machine code. Java supports both compiler and interpreter. Java Compiler converts the java code (source code) to the bytecode. Java interpreter JVM executes this bytecode at runtime and produces output. This compilation and execution can be done on different machines.
Platform-independent C++ is platform dependent. Java is platform-independent. As the bytecode can be run on any machine by JVM.
Designed For C++ was designed as an upgraded version of C, with advanced features such Object oriented features. Java was initially developed for Digital devices, later it was widely accepted as an internet programming language.
Used for C++ is mainly used for developing system programming. Java is mainly used for application programming.
Goto statement C++ supports the goto statement. Java does not support the use of goto statements.
Multiple inheritance C++ supports multiple inheritance. Java does not support multiple inheritance. The same functionality can be achieved by using interfaces in java.
Pointers C++ supports the use of pointers. Java does not have any concept of pointer, nor does it support similar functionality.
References In C++, you can use both call by value and call by reference. Java only supports call by value and does not support call by reference.
Multithreading C++ does not have its own concept of multithreading. Java supports multithreading.
Operator overloading C++ supports the concept of operator overloading. Java doesn’t support operator overloading.
Structure C++ supports structures. Java does not support structures.
Unions C++ supports unions. Java does not support unions.
Runtime error In C++, you cannot handle runtime errors. In Java, you can catch and handle runtime errors.
Portable C++ is not portable as it is platform dependent language. Java is a portable language as java is a platform independent language.

C++ Program

Let’s examine a very basic C++ program that prints the phrase “Hello World!” on the screen.

#include <iostream>  
using namespace std;  
int main() {  
   cout << "Hello World!";  
   return 0;  
}

Output:

Hello World!

Java Program

Let’s write the same program in Java programming language.

class HelloWorld{  
    public static void main(String args[]){  
     System.out.println("Hello World!");  
    }  
}

Output:

Hello World!

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