public class Box<T> { private T t; public void set(T t) { this.t = t; } public T get() { return t; } } After type erasure, the Java compiler converts the class to something like this: ...

In contrast, a data structure is a concrete implementation of one or more ADTs, similar to how Java classes implement interfaces. Examples of ADTs include Employee, Vehicle, Array, and List.

We also need to import ArrayList from the Java.util package. Code. Copy Text ... The resulting data structure can be thought of as an “array of arrays,” wherein each element is an entire array ...