Java vs c++

C++ Vs JAVA: What’s the Difference?

What exactly is this language known as C++?
C++ is a programming language for computers that incorporates many of the elements found in the C programming language as well as Simula67 (first object Oriented language). The ideas of Classes and Objects were first presented by C++.

It encompasses both high-level and low-level characteristics of the language. As a result, it is considered a language of intermediate level. In the past, we referred to it as “C with classes,” because it possessed all of the characteristics that are associated with the C programming language.

What is the Java language?

Sun Microsystems is the company that created the computer language known as Java. This programming language was created by a modest software development team. They were known as the Green Team, and they were the ones that created the Java programming language in 1991.

History of C++

Bjarne Stroustrup of AT&T Bell Laboratories is credited with the creation of the C++ programming language. Stroustrup was a fervent advocate of the C programming language and a Simula67 fan. He intended to take the positive aspects of both languages and merge them. He set out with the intention of developing a programming language that is capable of object-oriented programming while still retaining the capability of C. This led to the creation of C++.

History of Java
The original name for the Java programming language was OAK. In its early stages, it was designed to facilitate the handling of gadgets and set-top boxes. Oak was a dismal and disastrous failure. As a result, Sun Microsystems rebranded the programming language as Java in 1995 and made changes to it in order to capitalise on the rapidly expanding market for web application development.

The acquisition of Sun Microsystems by Oracle Corporation in 2009 resulted in the company gaining possession of two important software assets previously owned by Sun: Java and Solaris.

Difference Between C++ and Java

Parameter C++ Java
Relationship No strict relationship between class names and filenames. In C++, header files and implementation files are used for specific class. The strict relationship is enforced, e.g., the source code for class PayRoll has to be in PayRoll.java.
Input mechanism I/O statements use in and cout, e.g., in » x; cout« y; I/O input mechanism is a quite complex as it reads one byte at a time (System.in). Output is easy, e.g. System.out.println(x);
Compiler and Interpreter C++ only support compiler Java supports both compiler and interpreter
Compatibility with other languages Compatible with C source code, except some exceptional cases. No backward compatibility with any previous language. The syntax is influenced by C/C++.
Access control and object protection Flexible model with constant protection available The cumbersome model encourages weak encapsulation.
Concept Write once compile anywhere Write once run anywhere everywhere
Support for programming type Allows both procedural programming and object-oriented programming. Support object-oriented programming model.
Interface Allows direct calls to native system libraries. Only call through the Java Native Interface and recently Java Native Access
Memory management Accessible to programmer System controlled
Root hierarchy C++ there is no such root hierarchy. C++ supports both procedural and object-oriented programming; therefore, it is called a hybrid language. Java is a pure object-oriented programming language. That’s. Why It follows single root hierarchy.
Best features C++ supports Object-oriented features Procedural programming features. Java support automatic garbage collection. It does not support destructors as C++ does.
Goto Statement C++ has a goto statement. Although, it is not ideal to a use a goto statement. Java has no goto statement. The keywords got, and const are reserved even if they are not used.
Multiple inheritance C++ provide multipleInheritance. The keyword virtual is used to resolveproblems during multipleinheritance if there is any. Java doesn’t provide multiple inheritance.
Scope resolution operator C++ has scope resolution operator (: :) which is used to define a method outside of a class and to access a global variable within from the scope where a local variable also exists with the same name. No scope resolution operator (: :) in Java. The method definitions have to occur within a class, so there is no need for scope resolution.
Supporting method C++ supports both method overloading & operator overloading Java only supports method overloading. It does not provide support for operator overloading.
Portability The source must be recompiled for the platform; hence the code is not portable. Bytecode classes are transferrable to platform-specific JVM’s.
Type semantics Consistent between primitive and object types. Differ for primitive and object types.
Libraries Predominantly low-level functionality Massive, classes for high-level services.
Runtime error detection Programmer responsibility. System Responsibility.
Functions & Data Functions and data may exist external to any class, global and namespace scopes are available. All function and data exist within classes; package scope are available.
Platform C++ programs are platform dependent. They need to be compiled for a particular platform. Java programs are platform independent. Java programs are written for Java Virtual Machine (JVM). It will run without needing recompilation.
Runtime error detection In C++, It is Programmer responsibility to check the errors. It is system responsibility to check error in the program.
Pointer C++ support pointers. Java offers only limited support for pointers.
Structure It supports structures. It does not any support for structures.
Unions C++ supports unions. Java does not support unions.
Object management C++ supports manual object management with the help of new and delete keywords. Java is heavy depend on automatic garbage collection. It does not support destructors.