One of the features that make Java so powerful, is its object-oriented structure. This means that Java uses classes and objects to create more scalable, modular, and organized code. This can be a ...

Object-oriented systems are usually partitioned into layers of related responsibilities and only dependencies in one direction are allowed, from higher layers (more specific, less reusable) to lower ...

Nested classes are classes that are declared as members of other classes or scopes. Nesting classes is one way to better organize your code. For example, say you have a non-nested class (also known as ...

A Java string is a sequence of characters that exists as an object of the class java.lang. Java strings are created and manipulated through the string class. Once created, a string is immutable -- its ...

In this exercise, you will use java methods to solve a series of problems. You will use provided unit tests to verify that your solutions are correct. You may notice that the build is broken when you ...

In this exercise, you will use java methods to solve a series of problems. You will use provided unit tests to verify that your solutions are correct. You may notice that the build is broken when you ...