Implementing a Java Program?
https://www.computersprofessor.com/2016/06/implementing-java-program.html
Implementation of a java
application program involves series of
steps. They include
1.
Creating a
program.
2.
Compiling the
program.
3.
Running the
program.
Creating the
program :-
We
can create a
program using any text editor.Assume that
we have entered the following.
class Test
{
public
static void main
(String args[])
{
System. Out. println
(“ Hellow”);
System .Out . println (“
welcome to the world of JAVA”);
}
}
We must save this
program in a file
called Test. java.
This file
are called the source file. Note that
all java source files
will have the extention “java”
.if a program contains
multiple classes, the file name
must be the
class name of
the class containing
the main method.
Compiling the program:-
To
compile the program we must
run the java compiler java c
with the name of the
source file on the commend
line as shown below.
javac Test . java
If every thing
are ok the java c compiler creates
a file called Test.class containing the byte code of the
program. Note that the compiler automatically names the byte code file as .class.
Running the Program:
we need to use the java interpreter to run a stand alone program.At the command prompt
type
java Test
Now the interpreter looks
for the main
method in the program
and begins execution from there.When executed our
program displays the
following output:
Hellow
Welcome to
the world of JAVA.
