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. This is the last chapter of the Java Keyword series. This is probably the keyword I have used the least. In my 20 year career as a software developer, I have used this keyword once, and that was to make some addition to legacy code. The keyword native is a method modifier . Basically, it is a keyword that can only be applied to methods. According to the Java Language Specification (JLS), A method that is native is implemented i...
I wrote this back in March, 2012 for my Object-Oriented Programming class at Texas Wesleyan University in Fort Worth. I got this out of the "vault" because my son, who is in High School, has a friend who had a question on this very topic. I thought I had posted this to my blog and was shocked when I learned that was not the case. So, here we go... The equals method In my opinion, this is probably the most overlooked topic taught in Java. I have worked (and still work) with developers who seem to struggle with the concept of object comparison in Java. In Data Structures, you may have learned this concept. I will attempt to illustrate and simplify this concept using a "real life" example. For my illustration, I will use the famous Russian Dolls. A "Russian Doll," as it is typically known, is a set of wooden dolls of decreasing size placed one inside the other. Basically, all dolls with the exception of the smallest one are hollowed so t...