Which company developed Java?
Java is developed by Sun Microsystems and launched as a high-level programming language that can write cross-platform application software and is completely object-oriented. The company has been acquired by Oracle, so Java Now developed by Oracle Corporation.
Characteristics of Java
The Java language has developed very fast since its inception and is currently one of the most popular programming languages. The reason why Java is widely used and welcomed by everyone is that it has many outstanding features, the most important of which are the following.
Object-oriented
The Java language is purely object-oriented. It provides primitives such as classes, interfaces and inheritance, and supports single inheritance between classes and interfaces as well as multiple implementation mechanisms between interfaces and classes; Java language fully supports dynamic binding, while C language only uses dynamic binding for virtual functions. Certainly.
Simple syntax
The syntax structure of Java language is similar to C and C, but Java discards fuzzy concepts such as operator overloading and multiple inheritance that are difficult to understand in C, especially the Java language does not use Pointers instead use references and provide an automatic garbage collection mechanism so that programmers don't have to worry about memory management.
High security
Java places special emphasis on security. Before a Java program is run, code security checks are performed to ensure that the program does not have the possibility of illegally accessing local resources and file systems, and to ensure the safety of the program when it is transferred and run across the network.
Platform independence
Java introduces the concept of virtual machine. The Java Virtual Machine (JVM) is built on hardware and operating systems and is used to interpret and execute Java bytecode files. , providing a unified interface for different platforms. This allows Java applications to run on different system platforms, achieving platform independence and is very suitable for network applications.
Support multi-threading
The Java language supports multi-threading. The so-called multi-threading can be understood as multiple tasks executing concurrently in the program. The synchronization mechanism provided by the Java language can ensure the correct operation of shared data by each thread. Multi-threading can greatly improve the execution efficiency of programs.
Recommended tutorial: "Java Tutorial"
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