Java: Understand what it is and what it serves
Surely, you’ve heard of Java in your life. It is common to try to open certain sites, not get and appear a message saying that the problem is in Java.
Despite this, most people do not know what it is, do not know its meaning and do not know what it is for. So let’s approach the Java universe in this article:
What is Java and what is it?
Java is a programming language and object-oriented computing platform, launched in 1995 by Sun Microsystems and currently owned by Oracle.
Such a language enables the creation of programs for different platforms, which are compiled into a bytecode, executed by a virtual machine. Thus, such programs can be run on any type of platform supported by Java technology, such as desktop, mobile, and the web, for example, and can be developed in several operating systems, such as Windows, Linux, and Mac.
As a versatile multi-platform technology, it has become available in many types of electronic devices, whether mobile or not. In addition, most software companies offer Java language programs, which further spread their global relevance.
The language has gained even more strength with the so-called J2EE, which is a Java language for the Internet and corporate environments. It is common to notice that some sites only work after installing Java on your device.
Java can also run programs within the browser through a plugin. This is the case of access to Internet banking services, such as Internet Banking, for example. Without Java technology, you can not run applications or services like this. It allows, in addition to accessing these platforms, you do not have to do any type of action to use them.
The Java language was designed, with a view to some main objectives, such as:
- Object orientation
- Portability and Independence: “Write Once, Run Anywhere”
- Network resources: a library of routines that facilitates cooperation with protocols
- Security: Can run programs without restrictions
- Divisions of Java
Divisions of Java
Java is divided into three types:
- Java SE (Standard Edition), which integrates the standard language part, such as desktop applications, for example;
- Java EE (Enterprise Edition), aimed at the construction of corporate web applications;
- Java ME (MicroEdition), targeting mobile devices such as mobile phones and tablets.
The latest version of Java currently contains relevant enhancements to improve the performance, security, and stability of Java applications on devices. This update allows actions to continue to run with the same quality as previous versions. The Java download is completely free and can be downloaded from the official Java website.
For those who download Java online to run it in your Web Browser, you will receive the Java Runtime Environment (JRE) version, composed of the Java Virtual Machine (JVM), platform core classes and Java libraries for support.
If you are creating a new consumer device such as an application, for example, you must contact your Oracle company for information on how to incorporate Java into it.
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