What is java?
Java is a straightforward, high-level, secured, multithreaded, platform-independent, object-oriented programming language. It's developed by James Gosling in Sun Microsystem in the 1990s for developing internet applications. Its first version was released on January 23, 1996. It is a descendant of c++ programming languages. Its syntax is similar to C and C++, but it omits many features that make C and C++ complex, confusing and unsafe. So, in java, we can see the most horrible topics such as pointers, structures, union, operator overloading, multiple inheritances, and many more.
The Java platform was initially developed to address the problem of building software for networked consumer electronic devices. It was designed to support multiple host architectures and to allow secure delivery of software components. To meet these requirements, compiler code had to survive transport across networks, operate on any client OS, and assure the client that it was safe to run. Before Java Language, the software for these consumer electronic devices such as washing machines, microwave ovens, and micro controllers was developed by C, C++.
These Languages are platform-dependent. So we required a platform-independent language that could be used to create software embedded in various consumer electronic devices. In an attempt to find such a solution, in SUN Microsystems, a team headed with a scientist James Gosling began work on portable, platform-independent language that could be used to produce code that would support any technology at any time. Initially, they named that language OAK; it's a tree name. It was all happened in the middle of 1991 and late 1992. In the main time of enhancing this wide web was emerging into the market. In www, so many verities of CPUs under different environments will be connected. So hare also require a portable and platform-independent language. The only solution for this problem is OAK. So this OAK language was modified or enhanced to fulfill the requirements of internet programming and was renamed "JAVA." It happened in 1995.Java is more data-oriented. Java is a high-level language because the code translation takes into machine language using compiler or interpreter.Java is mainly used for application programming. It is widely used in Windows, web-based, enterprise, and mobile applications. Java was designed and created as an interpreter for printing systems but later extended to support network computing. It was designed to be easy to use and accessible to a broader audience. Java supports call by value only.
There is no call by reference in java. Java source code is converted into bytecode at compilation time. The interpreter executes this bytecode at runtime and produces output.Java supports method overloading, which helps in code readability.Java supports documentation comment (/*... */) to create documentation for java source code. Java has no virtual keyword. We can override all non-static methods by default. In other words, non-static methods are virtual by default. Java supports an unsigned right shift >>> operator that fills zero at the top for the negative numbers. For positive numbers, it works the same like >>.
Java Features:-
To support internet application development, java programming has the below features.
The java programming language can be characterized by all of the following buzzwords:-
1.) Simple
2.) Secure
3.) Robust
4.) Portable
5.) Architecture neutral
6.) Object-oriented
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