Programming Corner

This article summarize the use of the keyword static . I suggest you review Java Keywords (Part V): Classes vs Interfaces and Java Keywords (Part IX): Switch Statements before proceeding. Java keyword list abstract continue for new switch assert default goto * package synchronized boolean do if private this break double implements protected throw byte else import public throws case enum instanceof return transient catch extends int short try char final interface static void class finally long strictfp volatile const * float native super while Keyword marked with an asterisk (*) are keywords that, although valid, are not used by programmers. Very early in this series, I discussed the use of the keyword static and mentioned that I would leave for later discussion another use of that keyword. Well, the time has come. Using static method in interfaces Let me start by saying that the only re...

We are up to 34 keywords covered in previous articles! That's 71% keywords covered. We have only 16 keywords to cover and I will be covering 2 of those in this article. This article will illustrate the use of the keywords implements and extends for implementing functionality outlined in interfaces as well as extending the functionality of a class. I suggest you start with Java Keywords (Part I) before proceeding further, if you have not read any of the previous articles in the Java Keyword series. Also, go back and read the one about Data Types. All of these articles are from September 2018. That should help you find them quickly. You can also use the "search" option at the top of this page. The series was written with natural progression in mind. Therefore, some of the keywords already covered may be used in code examples illustrated here. Java keyword list abstract continue for new switch assert default goto * package synchronized ...

The Java keyword list has 21 keywords grayed out. That puts us at 42% of keywords covered by these series of articles. Amazingly, that's almost enough knowledge to built simple applications. I suggest that if you have not read any of the articles in Java Keyword series, go back read them before proceeding further. Also, go back and read the one about Data Types. All of these articles are from September 2018. That should help you find them quickly. You can also use the "search" option at the top of this page. This article will cover the keywords used for looping: for , do , and while , as well as the keywords used to change the flow of loops: break and continue . Java keyword list abstract continue for new switch assert default goto * package synchronized boolean do if private this break double implements protected throw byte else import public throws case enum instanceof return transient catch extends int ...

The Java keyword list has 19 keywords grayed out. That puts us at 38% of keywords covered by these series of articles. Amazingly, that's almost sufficient to built simple applications. I suggest that if have not read any of the articles in Java Keyword series, you read them before proceeding further. Also, go back and read the one about Data Types. All of these articles are from September 2018. That should help you find them quickly. This article will only cover the if and else keywords. Java keyword list abstract continue for new switch assert default goto * package synchronized boolean do if private this break double implements protected throw byte else import public throws case enum instanceof return transient catch extends int short try char final interface static void class finally long strictfp volatile const * float native super while Keyword marked with an asterisk (*) are keywords...

This is not a break in my Java Keyword series. This is a continuation of the series that focuses in two things. The primary goal is to explain what an interface is (which differentiates them from classes) and go over a few examples that illustrate why interfaces are not just needed, but essential for robust and reusable software solutions. Because of new improvements introduced with Java 8, I will also introduced the concept of default methods; although will do so in a separate article... A second part to this one. I feel doing that is necessary for keeping the scope of this article as narrow as possible for the sake of simplicity and clarity. Interestingly enough, how to use interfaces will also be covered in a separate article where I will be discussing the Object-Oriented concept of inheritance. In the new article, I will be emphasizing in the keywords extends , implements , and super . The Java keyword list has 18 keywords grayed out. This article will only cover th...