For Running A Java Program What We Do?

First you need to install the java after that you need to set the path.right click on Mycomputer select properties in that select  advance next environment variables after that select any new give first row as path and second row is your java installation path.write a prog. In edit plus save with .java extensionafter completion of all these open the command prompt type type like thisjavac programname.java    perss enter java programname