Reading Time: 3 minutes Java is based on OOPS concepts and abstraction is one of its feature. So by using interfaces in Java, we achieve abstraction. Like a class, an interface can have methods and variables, but the methods declared in an interface are by default abstract (method signature without body).
Reading Time: 2 minutes Scala has lots of features and one of the features always confused me called “pass-by-name” argument. For me pass by name is same as “higher-order-function” but different from just syntax otherwise everything is same. While googling out for their difference, I found: Pass-by-name is lazy evaluation but higher-order-functions are eager. Pass-by-name is used for constructs custom controls. and maybe there are more, but these two are available everywhere. Continue Reading