Influenced By | Java was Influenced by Ada 83, Pascal, C++, C#, etc. languages. | C++ was Influenced by Influenced by Ada, ALGOL 68, C, ML, Simula, Smalltalk, etc. languages. |
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Influenced to | Java was influenced to develop BeanShell, C#, Clojure, Groovy, Hack, J#, Kotlin, PHP, Python, Scala, etc. languages. | C++ was influenced to develop C99, Java, JS++, Lua, Perl, PHP, Python, Rust, Seed7, etc. languages. |
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Platform Dependency | Platform-independent, Java bytecode works on any operating system. | Platform dependent should be compiled for different platforms. |
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Portability | It can run on any OS hence it is portable. | C++ is platform-dependent. Hence it is not portable. |
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Compilation | Java is both a Compiled and Interpreted Language. | C++ is a Compiled Language. |
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Memory Management | Memory Management is System Controlled. | Memory Management in C++ is Manual. |
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Virtual Keyword | It doesn't have Virtual keywords. | It has Virtual keywords. |
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Multiple Inheritance | It supports only single inheritance. Multiple inheritances are achieved partially using interfaces. | It supports both single and multiple Inheritance. |
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Overloading | It supports only method overloading and doesn't allow operator overloading. | It supports both method and operator overloading. |
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Pointers | It has limited support for pointers. | It strongly supports pointers. |
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Libraries | It doesn't support direct native library calls but only Java Native Interfaces.
Libraries have a wide range of classes for various high-level services. | It supports direct system library calls, making it suitable for system-level programming.
C++ libraries have comparatively low-level functionalities. |
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Documentation Comment | It supports documentation comments (e.g., /**.. */) for source code. | It doesn’t support documentation comments for source code. |
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Thread Support | Java provides built-in support for multithreading. | C++ doesn’t have built-in support for threads, depends on third-party threading libraries. |
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Type | Java is only an object-oriented programming language. | C++ is both a procedural and an object-oriented programming language. |
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Input-Output mechanism | Java uses the (System class): System.in for input and System.out for output. | C++ uses cin for input and cout for output operation. |
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goto Keyword | Java doesn't support the goto Keyword | C++ supports the goto keyword. |
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Structures and Unions | Java doesn't support Structures and Unions. | C++ supports Structures and Unions. |
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Parameter Passing | Java supports only the Pass by Value technique. | C++ supports both Pass by Value and pass-by-reference. |
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Global Scope | It supports no global scope. | It supports both global scope and namespace scope. |
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Object Management | Automatic object management with garbage collection. | It supports manual object management using new and deletes. |
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Call by Value and Call by Reference | Java supports only calls by value. | C++ both supports call by value and call by reference. |
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Hardware | Java is not so interactive with hardware. | C++ is nearer to hardware. |
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