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Anonymous classes are unnamed and used when naming is unnecessary. They simplify code and fit into multiple superclasses, but cannot define constructors or be private, protected, or static. They are subsets of superclasses and save time and money, but lack flexibility.
Anonymous classes are classes that are not given a name by the person scheduling the class. Typically they are used when naming the class is unnecessary, such as when the class is nothing more than a required subset of another higher superclass. The benefit of programming anonymous classes is that they give the programmer the ability to simplify their code, especially in cases where anonymous classes fit into multiple superclasses. One major drawback is that anonymous classes cannot define constructors or be made private, protected, or static, since the lack of a name eliminates those possibilities.
In computer programming, a class is a generalized object that can appear in any number of specific instances. Just as the term “airplane” broadly covers all types of single-engine aircraft, twin-engine aircraft, military aircraft, and passenger ships, a “class” in computer terms is a generic instance of an object. It is nothing more than a template that can be compiled as needed to meet the needs of the programmers or the end user. For example, creating a class called “bicycle” would likely include parameters for a bicycle; in other words, tire size and type, number of gears, specific make and model of bicycle, and so on.
Programmers typically use anonymous classes as subsets of superclasses, which are classes built from multiple classes of their own. Continuing the previous example with the “bicycle” class, an anonymous subclass could be “tires,” containing information about size, brand, and so on.
The advantage of doing this is that the anonymous class of “tires” could fit equally well into a superclass of “bicycles” or a superclass of “cars”. By creating it as an anonymous class, the programmer can more easily reuse his work if necessary. This saves time and money and makes the code much easier to understand.
One drawback is that without a name, anonymous classes cannot use the same functionality as named classes. For example, they cannot be considered private, protected, or restricted classes. They also cannot use constructors, which are subroutines when the class first appears that initializes the class with default parameters. This lack of flexibility is the natural trade-off for the simplicity of an anonymous class.
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