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In Java, how do I identify the OS system programmatically?

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Posted

I'm reading this article about the function of OS system and I'd want to know the operating system of the host on which my Java program is executing programmatically (for example: I would like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the most reliable and safest approach to achieve this?

Edited by Mobo0

OSValidator.java

package com.mkyong.system;

public class OSValidator {

    private static String OS = System.getProperty("os.name").toLowerCase();

    public static void main(String[] args) {

        System.out.println("os.name: " + OS);

        if (isWindows()) {
            System.out.println("This is Windows");
        } else if (isMac()) {
            System.out.println("This is Mac");
        } else if (isUnix()) {
            System.out.println("This is Unix or Linux");
        } else if (isSolaris()) {
            System.out.println("This is Solaris");
        } else {
            System.out.println("Your OS is not support!!");
        }
    }

    public static boolean isWindows() {
        return (OS.indexOf("win") >= 0);
    }

    public static boolean isMac() {
        return (OS.indexOf("mac") >= 0);
    }

    public static boolean isUnix() {
        return (OS.indexOf("nix") >= 0
                || OS.indexOf("nux") >= 0
                || OS.indexOf("aix") > 0);
    }

    public static boolean isSolaris() {
        return (OS.indexOf("sunos") >= 0);
    }

}

 

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