Append Property To System Properties With JAVA

 Properties sysProp = System.getProperties();
        sysProp.setProperty("country", "India");
        System.setProperties(sysProp);
        for (String key : sysProp.stringPropertyNames()) {
            System.out.println(key +" => "+ sysProp.getProperty(key));
        }


appending system property is easy: first get system property and than set new property as pair of key-value.