C++ and Java Differences

Posted June 25, 2022 by Anusha ‐ 2 min read

There are various differences between c++ and java. A few noticeable differences are mentioned below

There are various differences between c++ and java. A few noticeable differences are mentioned below.

C++Java
C++ is not a purely Object-Oriented programming language, since it is possible to write C++ programs without using a class or an objectJava is a strictly Object-Oriented programming language since it is not possible to write a java program without using at least one class
C++ supports three access modifiers namely private, public, and protectedJava supports four access modifiers namely private, public, default, and protected
C++ has goto statementsJava does not have goto statements
The Pointers concept is present in C++Pointers cannot be created or used in Java language
Automatic casting is present in the C++ programming languageIn some cases implicit casting is available but it is advisable to use casting whenever it is needed
Multiple inheritance is present in the C++ programming languageMultiple inheritance is not present in Java but it can be achieved by some other means
Operator overloading is present in C++Operator overloading is not present in java
Allocating and deallocating memory is the responsibility of the programmer in C++ languageAllocating and deallocating memory is the responsibility of the JVM( java virtual machine)
Header, typedef, and #define files are available in C++ languageHeader, typedef, and #define files are not present in Java but they can be achieved through other means
C++ is platform and system dependentJava is platform and system independent
C++ uses compiler only for converting byte code to machine codeJava uses both compiler ( JIT compiler) and interpreter for converting byte code to machine code, hence it is faster than other programming languages
C++ supports 63 keywordsJava supports 50 Keywords
Templates are supported in C++Templates are not supported in Java
Destructors are supported in C++ languageDestructors are not supported in Java language
Datatypes like union and structure are supported in C++Datatypes like union and structure are not supported in Java
Multithreading is not supported in C++Multithreading is possible in Java
Database connectivity is not supported in C++ languageDatabase connectivity is supported in Java language
Security problems can be faced in C++ programing languageJava elimminates a lot of security problems like Eavesdropping, Tampering, Virus, and impersonation for data on innternet
Interfaces are not supported in C++Java supports interfaces
java differences

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