Abstract classes and interfaces in Java serve fundamentally different purposes ... with only one abstract method cannot use lambdas. Table 1 summarizes the differences between abstract classes ...

In Java, an interface defines a type and ... implementation As indicated in the above three tables, from a type perspective, concrete classes, abstract classes, and interfaces are identical ...

However, seasoned Java developers know that sometimes the simplest of language constructs can turn out to be the most powerful, as is the case with object models designed with abstract classes and ...