Compiling and Running Java Programs

There are various steps to compiling and running java programs, these are
Step-1 : First to install JDK, JRE and JVM into the System.
Step-2 : Prepare source code in any editor like notepad, c++ editor etc.
Step-3:

class HelloWorld
{
public static void main(String r[])
{
int a=10, b=10,c;
c=a+b;
System.out.println("Output of the program is"+c);
}
}

Step-4 : Save the source code in the java bin directory. Class name which contain main method should same of the file name.
Example :  HelloWorld (class name)
                  HelloWorld.java (file name)

Step-5 : Open command prompt and change the directory where your java program has been saved.
Suppose your java software installed in C:/>. Now, compiling steps is:

C:/java/jdk1.7.0/bin> Javac filename.java   (press Enter)
C:/java/jdk1.7.0/bin> Java  filename.java    (press Enter)

Step-6: During compilation, if program generate errors, it means you can't run your program.                 
Compiling and Running Java Programs Compiling and Running Java Programs Reviewed by Jacob Lefore on November 10, 2014 Rating: 5

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