Step Prepare First JAVA Application:
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1.
Install JAVA Software
2.
Select JAVA Editor
3.
Write JAVA Program
4.
Save JAVA File
5.
Compile JAVA File
6.
Execute JAVA Problem
1. Install JAVA Software:
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i.
Download jdk file from Oracle or Click Here.
(Accept the terms and click on the link according to your OS).
ii.
Double click on jdk-8u111.exe file.
iii.
Click on “Yes” Button.
iv.
Click on “Next” Button.
v.
Change jdk Installation location from “C:\Program file(x86)\Java\jdk1.8.0_111”
to
“C:\Java\jdk1.8.0_111” by clicking on
change button and OK button.
vi.
Click on “Next” Button.
vii.
Change jre installation location from “C:\Program file(x86)\Java\jre8” to
“C:\Java\jre8” by clicking change Button
and OK button.
viii.
Click on “Next” Button.
ix.
Click on “Close” Button.
After
Installation of JAVA Software, we have to set “path” environment variable to
the location where JAVA commands like javac, java, javap, javadoc,… are
existed, that is
“C:\Java\jdk1.8.0_111\bin”.
In
command prompt:
Note:
the main intention to set “path” environment variable to give location
information of all JAVA commands like javac, java, … to the operating system in
order to execute.
The
above “path” setup is temporary setup, it is valid up to the present command
prompt only. If we want to set “path” environment permanently then we have to
use the following steps:
a)
Right Click on “This PC” on desktop.
b)
Select “Properties”.
c)
Click on “Advanced System Setting”.
d)
Select “Advanced Tab” (By Default Selected).
e)
Click on “Environmental Variable” Button.
f)
Goto user variables section and click on “New” Button.
g)
Provide the following details:
variable
name: path
variable
value: C:\Java\jdk1.7.0_79\bin;
h)
Click on “Ok” Button.
i)
Click on “Ok” Button.
j)
Click on “Ok” Button.
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2. Select JAVA Editor:
Editor
is a Software, it will provide very good environment to write java programs
& to save JAVA program into our system.
EX:
Notepad, Notepad++, EditPlus…
Note:
In real time application development, it is not suggestible to use editors,
always it is suggestible to use IDEs[Integrated Development Environments]
EX:
Eclipse, MyEclipse, Netbeans, Intellij,…..
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3. Write JAVA Program:
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In
JAVA application, we will write program by using JAVA predefined library,
providing by JAVA API[Application Programming Interface].
EX:
File Name: D:\java10\FirstApp.java
Properties of a JAVA File |
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