C++ Vs JAVA: What’s the Difference?

Filed in Articles by on 30th May 2021

This post provides detailed information on C++ Vs JAVA: What’s the Difference?. Read on to know about this Java language and the difference between C++ Vs JAVA.

C++ Vs JAVA: What’s the Difference?

C++ Vs JAVA: What’s the Difference?

C++ Vs JAVA: What’s the Difference?.

What is the C++ language?

C++ is a computer programming language that contains the features of the C programming language and Simula67 (first object Oriented language). It introduced the concept of Objects and Class.

Earlier called “C with classes”, because it had all the properties of the C language, C encapsulates low-level and high language features. Therefore, it is seen as an intermediate-level language.

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What is the Java language?

Java is a programming language developed by Sun Microsystems which was a  small software development team. java language was initiated in the year 1991 and they were known as the Green Team.

History of C++

C++ language was developed at AT & T Bell Laboratories by Bjarne Stroustrup. Stroustrup was an admirer of Simula67 and a strong supporter of C. His aim was to combine the best of both languages and to create a language that supports object-oriented programming features and still retains the power of C. This resulted in C++.

History of Java

The Java language was developed for handling devices and set-top boxes and was initially called OAK. Originally, it was developed for set-top boxes and handling devices and was a massive failure. However, Sun changed the name to Java in 1995 and modified the language to take advantage of the burgeoning World Wide Web development business.

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Later, in 2009, Sun Microsystems was acquired by Oracle Corporation acquired and they took ownership of two key Sun software assets: Java and Solaris.

KEY DIFFERENCE:

C++ uses only a compiler, whereas Java uses a compiler and interpreter both.

C++ supports both operator overloading & method overloading whereas Java only supports method overloading.

C++ supports manual object management with the help of new and delete keywords whereas Java has built-in automatic garbage collection.

C++ supports structures whereas Java doesn’t support structures.

C++ supports unions while Java doesn’t support unions.

C++ Vs Java

Difference Between C++ and Java

  • C++ No strict relationship between class names and filenames. In C++, header files and implementation files are used for specific classes.
  • JAVA The strict relationship is enforced, e.g., the source code for class PayRoll has to be in PayRoll.java.
  • PARAMETER Input mechanism
  • C++ I/O statements use in and out, e.g., in » x; cout« y;
  • JAVA I/O input mechanism is 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 supports compiler
  • Java supports both compiler and interpreter
  • Compatibility with other languages
  • Compatible with C source code, except for some exceptional cases.
  • No backward compatibility with any previous language. The syntax is influenced by C/C++.
  • Access control and object protection
  • A 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 it. Why It follows a single root hierarchy.
  • Best features
  • C++ supports Object-oriented features Procedural programming features.
  • Java supports automatic garbage collection. It does not support destructors as C++ does.
  • Goto Statement
  • C++ has a goto statement. Although, it is not ideal to use a goto statement.
  • Java has no goto statement. The keywords got, and const is reserved even if they are not used.
  • Multiple inheritances
  • C++ provides multiple inheritances. The keyword virtual is used to resolve problems during multiple inheritances if there are any.
  • Java doesn’t provide multiple inheritances.
  • Scope resolution operator
  • C++ has a scope resolution operator (: 🙂 which is used to define a method outside of a class and to access a global variable within 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 transferable to platform-specific JVMs.
  • 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 functions and data exist within classes; package scope is 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 the Programmer’s responsibility to check the errors.
  • It is the system’s responsibility to check errors in the program.
  • Pointer
  • C++ support pointers.
  • Java offers only limited support for pointers.
  • Structure
  • It supports structures.
  • It does not have 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 heavily dependent on automatic garbage collection. It does not support destructors
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