Each object has a special method called a constructor. The constructor can be overloaded as necessary. Typically, you will have a default constructor (sometimes called a no-arg constructor), where no parameters is passed to the constructor. This special method is used to constructor an object when it is created. It is very similar to a…
As was mentioned briefly in talking about Java Instance Methods, you can overload a Java method, just as you would overload a C++ function/method. (C doesn’t allow for overloading, only C++). Since there is no method prototype, it is easy to just write your new method. I like to group my overload methods together, so…
In object oriented programming, you consider the object which you are programming about, for example, a car. You then consider the attributes about the object, for example, the make, model, color, year built, etc. You also have consider the operations of the object. i.e. What can it do? A car for example could turn on…
Static methods in Java work on the same basic idea of static functions in other languages like C/C++. The idea is that sometimes you have a function that either needs to be shared between instances, instead of tied to a specific instance, or to be used without needing to create an object from the class…
Now, this is not an in depth explanation of References, but is a good introductory/overview of Java References. In C/C++, you had pointers. You’d create an object and point to its location in memory, and it was great when you had limitations and different segments of memory to work with. However, you had to keep…
Importing a package allows me to import a class, or set of classes into my application that I can use. (These will be outside of the package that I create for my own project.) These packages act like libraries in other languages where a lot of work might be done for you already, and you…
Starting in the 2000’s when computers started to get faster, a lot of languages added a new type of loop, that is faster to write for the developer, but often a little slower to run. However, because of the new found computer speed, it wasn’t deemed to be a major issue. That loop was called…
Arrays in Java are similar to C/C++ arrays, however there are some special unique things about them which make Java Arrays a little easier to work with in my opinion. Like in C/C++ you can have single dimensional or multidimensional arrays. Advantages to Arrays Like a C/C++ array, the array in Java is a contiguous…
