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 object | Java 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 protected | Java supports four access modifiers namely private, public, default, and protected |
| C++ has goto statements | Java 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 language | In 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 language | Multiple 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++ language | Allocating and deallocating memory is the responsibility of the JVM( java virtual machine) |
| Header, typedef, and #define files are available in C++ language | Header, typedef, and #define files are not present in Java but they can be achieved through other means |
| C++ is platform and system dependent | Java is platform and system independent |
| C++ uses compiler only for converting byte code to machine code | Java 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 keywords | Java supports 50 Keywords |
| Templates are supported in C++ | Templates are not supported in Java |
| Destructors are supported in C++ language | Destructors 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++ language | Database connectivity is supported in Java language |
| Security problems can be faced in C++ programing language | Java 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 |