To edit Java source code you can use any text editor. In order to compile a Java source file to Java bytecode you need the Java Development Kit (JDK). The program which does this is called "javac" and can produce .class files which can be used by the Java Runtime Environment (JRE) to execute.
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It is a kit of JAVA development tools that are normally not shipped with JAVA! MOST companies have "Development kits" for their software - Java is not an exception!
No. Java is not an operating system, it is a programming language.
Java programming language is a software tool developed by Sun.
The "JDK" is the Java Development Kit. I.e., the JDK is bundle of software that you can use to develop Java based software. Typically, each JDK contains one (or more) JRE's along with the various development tools like the Java source compilers, bundling and deployment tools, debuggers, development libraries, etc.
Yes, I have Java software on mine.
JDK is java development kit whereas J2SDK is the newer one and is called as Java 2 software development kit.
NetBeans is an integrated development environment. It provides all the tools you need to develop software.
No. Java is free software.
No, Java script is not needed to play poptropica.
Programming is usually done in Java, but you can use lots of different development tools, for example Delphi, Lazarus, etc. The Wikipedia article "Android software development" provides more details.
There are a number of tools that are required for Java development. Some of the most popular tools that are available for Java development are Eclipse 3.6, NetBeans 6.9 and Oracle JDeveloper Studio 11g.