So, to run a Java application someone else provides, you need JRE to develop a Java application, you need JDK.Īs Chris Marasti-Georg pointed out in a comment, you can find out lots of information at Sun's Java web site, and in particular from the Java SE section, (2nd option, Java SE Development Kit (JDK) 6 Update 10).
The JDK includes the compiler and other tools needed to develop Java applications JRE does not.
So to set these variables, first right-click on My PC and select Properties.SE defines a set of capabilities and functionalities there are more complex editions (Enterprise Edition – EE) and simpler ones (Micro Edition – ME – for mobile environments). If we do not set the PATH variable, we will specify the full path to the JDK bin every time we run a program.įor example: C:\> “C:\Program Files\Java\jdk-11.0\bin\javac” TestClass.java. The CLASSPATH variable provides us with the library files location. The PATH variable in our system provides the exact location of executables that will be used for running Java programs, such as javac and java. We will need to update our system’s Environment variables with our installed JDK bin path to run the Java programs because while executing the programs, the command prompt will look for the complete JDK bin path. This is the directory structure for our example. If we make any change to this path at all, we need to make a note of it as it will be required in the upcoming steps. JDK gets installed in the C directory of our system by default having the path “C:\Program Files\Java\jdk-11.0”. To recover some of our system’s disk space, it is good practice to delete the downloaded exe file once the download has been done. Click on the Close button once the installation has finished. Click on Next to proceed with the installation, and follow the Installation guide provided for any queries.
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