Listing the system properties - A Java Code Example

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By listing the properties of the system you run the program on you can find out a lot about it. Your program maybe should act in a certain way depending on what operating system it's currently on.
This code example shows how to retrieve the properties and how to enumerate through and print them out to the console.

import java.util.Enumeration;
import java.util.Properties;

/**
*
* @author javadb.com
*/
public class Main {

    /**
     * Lists the system properties
     */
    public void listSystemProperties() {

        Properties prop = System.getProperties();

        Enumeration enumeration = prop.keys();

        while (enumeration.hasMoreElements()) {
            String key = (String) enumeration.nextElement();
            System.out.println(key + " = " + prop.getProperty(key));
        }

    }


    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Main().listSystemProperties();
    }
}

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