The function of the JAVA compiler (javac.exe) is to compile the java source program into an intermediate code bytecode file, which is the most basic development tool.
Java program developers can choose from many integrated development environments IDE (Integrated Development Environment) (recommended learning: java course)
First read java when compiling Source program (that is, type javac HelloWorld.java and other file name parameters and other option parameters under the MS-DOS command line), then perform a syntax check, and terminate the compilation if any problems occur. After passing the syntax check, the intermediate code, that is, bytecode, is generated. The bytecode file name is the same as the source file name, and the extension is .class.
Free open source Eclipse
Eclipse was originally developed by IBM as a next-generation IDE development environment to replace the commercial software Visual Age for Java. It was contributed to open source in November 2001. community, it is now managed by the Eclipse Foundation, a non-profit alliance of software vendors.
Eclipse is an open source, Java-based extensible development platform. By itself, it is just a framework and a set of services for building development environments through plug-in components. Fortunately, Eclipse comes with a standard set of plug-ins, including Java Development Tools (JDT).
Eclipse is a well-known cross-platform free integrated development environment (IDE). Initially it was mainly used for Java language development, but now some people use plug-ins to use it as a development tool for other computer languages such as C, PHP, Python and other languages.
Eclipse itself is just a framework platform, but the support of many plug-ins allows Eclipse to have flexibility that is difficult to have with other IDE software with relatively fixed functions. Many software developers develop their own IDEs using Eclipse as the framework.
Commercial fee-based MyEclipse (China, official website)
MyEclipse is a plug-in for Eclipse and a powerful J2EE integrated development environment. It is released by Genuitec. Commercial use charges apply.
MyEclipse is an extension to the Eclipse IDE. It can be used to greatly improve work efficiency in the development and release of databases and JavaEE, as well as the integration of application servers. It is a feature-rich JavaEE integrated development environment, including complete coding, debugging, testing and publishing functions, and fully supports HTML, Struts, JSP, CSS, Javascript, SQL, Hibernate, and Spring.
Oracle's Free NetBeans
NetBeans is an open source home for the developer and customer community founded in 2000 by Sun Microsystems (acquired by Oracle in 2009) , designed to build a world-class Java IDE.
NetBeans is currently available for development on Solaris, Windows, Linux and Macintosh OS X platforms and is used under the SPL (Sun Public License). It is an award-winning integrated development environment.
NetBeans includes an open source development environment and application platform. NetBeans IDE allows developers to use the Java platform to quickly create Web, enterprise, desktop and mobile applications. NetBeans IDE currently supports PHP, Ruby, JavaScript, Ajax , Groovy, Grails and C/C and other development languages.
IntelliJ IDEA
IntelliJ IDEA is a comprehensive Java programming environment that is hailed by many developers and industry experts as the best IDE on the market. It provides a series of the most practical tool combinations: intelligent coding assistance and automatic control, support for J2EE, Ant, JUnit, SVN and Git integration, non-parallel coding inspection and innovative GUI designer.
IDEA frees Java developers from some time-consuming routine work and significantly improves development efficiency. It runs faster, generates better code; continuous redesign and daily coding become easier, perfect integration with other tools; high cost performance and other characteristics.
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