Scala - Objects

Now that we know something about Scala’s built-in type, let’s look at its objects. Objects in Scala are created in classes. Classes are like the skeleton to objects. As a companion to classes, singleton objects can be declared using the keyword ‘objects’. When a class and an object share the same name, they are companions to each other. In addition, they are able share each other’s member, including private members. Objects can be declared as ‘Traits’ in Scala as an alternative. ‘Traits’ is very similar to Java’s interface, however ‘traits’ can be implements solely.


Different from Java’s interface, traits can be ‘mix-in’ with other traits and classes when constructing methods.