Not able to execute the method based on OS in JAVA

smartgupta · #1 (**permalink**) 06-18-2009

Hi,

In my application,I want to find out the OS name and based on OS I want to do some specific operations.So I write some code based on it in JAVA but I am able to get the OS name but Not able to use the method specific to OS.I write a simple code to check it and found that it is not going to the if statement.code is as follow--

Quote:

public class OSnane {

public static void main(String[] args) {

String OsName=null;
OsName=System.getProperty("os.name");

System.out.println("OS name="+OsName);
if(OsName == "SunOS")
System.out.println("hello Sun");
else if(OsName == "Windows XP")
System.out.println("Hello Windows");
else if(OsName == "Linux")
System.out.println("Hello Linux");
else
System.out.println("No OS selected!!!");

}

}

and the Output is:

Quote:

OS name=SunOS
No OS selected!!!

So please tell me how can I Use methods based on OS.
Thanks in Advance ...

cbkihong · #2 (**permalink**) 06-18-2009

Please consider taking some time for some readings to consolidate your Java knowledge. You don't use equality (==) for string equality tests. You must use the String.equals() method.

e.g. osName.equals("SunOS")

By using == you were comparing two object references and expectedly the equality is false.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
how to execute java in specified time- urgent	radhnki	SUN Solaris	1	01-07-2009 06:49 AM
How to execute java program from perl	umen	Shell Programming and Scripting	1	08-10-2008 03:08 AM
execute unix command from java eclips	katzs500	High Level Programming	0	08-05-2008 05:30 AM
How can I get an if statement to execute based on number of lines in a file?	LordJezo	Shell Programming and Scripting	6	05-14-2004 10:50 AM
execute command unix with java:possible or not?	mips	Shell Programming and Scripting	4	05-13-2004 07:07 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by