Because Java is an object-oriented language and C is a procedural language.
Java is object oriented, C is not...
Java does not require header files like C/C++.
Java is not similar to C. Java is, however, similar to C++. Both C++ and Java are object orientated programming languages (OOPL's).
Java is the complete object oriented Programming Language as every thing in java is an object,
java is an advanced object oriented programming language than c++
Java, C++
C is a procedure oriented language ,Where C++ & java are object oriented language.But java is platform independent.So generally C is called POP.C++ is called OOP.But java is OOP , which is platform independent.If java does not support primitive data type then it is called as pure object oriented language.
java is an object oriented programme it is similar to c++ so if you know very well in c++ you can easily figure it out.
C++ is object oriented. Java is around largely because many people didn't like how it was designed.
Machine code, assembly language and C are all non-object oriented programming languages. Fortran, COBOL, Pascal and BASIC were originally non-object oriented languages but there are now object-oriented variants of these languages. C++, C# and Java were all designed with object-oriented programming in mind from the outset.
Java compiles to byte code suitable for interpretation by the Java virtual machine, whereas C and C++ both compile to native machine code. Thus C and C++ programs perform better than equivalent Java programs. However, Java programs can run on any machine with a suitable Java virtual machine implementation, which is pretty much everything these days. C and C++ programs must be compiled separately upon each supported platform, provided the source code is either generic or includes compiler directives to filter the platform-specific code. Java programs need only be compiled once, thus cross-platform development is greatly simplified, at the cost of performance. C and Java cannot really be compared since C does not support object-oriented programming concepts. C++ is object-oriented but, unlike Java, it is not 100% object-oriented as it supports the concept of primitive data types that it inherited from C. Java is more closely related to C#, which is 100% object oriented.
No, there is no such operator or function in Java that can tell you the amount of memory an object uses.