Sunday, July 10, 2011

Getting started with java

JAVA tutorial>>>>>>Getting started>>....
Software You need
.Java 2 runtime Environment
.jdk 6
.j2re


Starting with IDE.....>>
.you need Ide
eg:jcreator,netbeans
Or Starting With cmd..........>>>>>

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.note:
here C:\program files\java\jdk1.6.0_25>>>
iam install jdk on c:\program files that is
NOTE:install jdk at same directory where You Install
Java 2 runtime Environment and
J2re
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note:
start-->settings-->control panel-->click "system"-->advanced(tab)
--->Environment variables-->click new
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variable:java
variable value:C:\program files\java\jdk1.6.0_25\bin
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variable value is the path of jdk install
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Click on Start-->run-->type CMD
then an black screen window open
type following
first open directory in cmd where your file locating...
cmd is look like this..
C:\Document and settings\computer>
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open directory in cmd...
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type cd..
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then command windwow like this:C:\Document and settings>
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type cd..
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then command window like this:c:\>
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type cd\my java
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then command window like this:C:\my java>
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then type following commands


set path=%path%;C:\program files\java\jdk1.6.0_25\bin
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.note:dont close this command window
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.open notepad or any text editor
.start->;accesories-->;notepad
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.type following commands



public class hello{
public static void main(String[]args){
System.out.println("hello world");
}
}


then save "hello.java"
save as type:click all files
encoding:ANSI
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note:Main class name is file name
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. compiling>>>>>
type
javac hello.java
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javacfilename.java
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note:if any error it will show
run>>>>
java hello
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javafilename
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output will be
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hello world
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note:iam save my all java files in c:\my java
.C:\-->localdisk
.my java -->>folder iam created for saving java
file...
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Lets look this example: hello.java this file we are saving at
folder name: my java
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