Optional 1

gistfile1.java

class Main {

    public Optional<String> someValue = Optional.absent();
    public Optional<String> someOtherValue = Optional.of("test");

    public static void main(String... arguments){

        Main m = new Main();

        if(m.someValue.isPresent()){
            String foo = m.someValue.get();
            System.out.println(foo); 
        } else {
            System.out.println("Some value missing");
        }

        if(m.someOtherValue.isPresent()){
             System.out.println(someOtherValue.get());
        }

    }

}