What is the grammatical difference between c language and java?

The syntax difference between c language and java

The compilation time of a single file java is faster than C language;

C language You can directly operate the memory, but java cannot directly operate it;

C language can encapsulate dynamic libraries, but java cannot;

C language code is not easy to cross-platform, and java code is easy to cross-platform;

C language has pointers, java does not have pointers;

C language can directly operate the serial port, java requires third-party jar package support;

C language threads are more flexible, and java threads All have been encapsulated;

The identifiers available in C are numbers, uppercase and lowercase letters, and underscores, and cannot start with a number; in addition to the three types of identifiers available in Java, there is one more dollar sign ($ ), also cannot start with a number.

C language can be used for independent functions, which can increase efficiency, and java is suitable for web application development;

unix is ​​written in C language, and java is also written in C language;

JAVA When doing web development, there are already many established framework technologies, there is very little C language, and it needs to deal with underlying content, which is very difficult for developers who are not familiar with computer principles;

There are too many open source packages for JAVA , C language also exists but it is less, and there are not as many frameworks for certain business application fields as java;

Recommended tutorial: Java tutorial

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