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To create custom Java events we need basicly three classes: The event class which will be fired When these classes are prepared, other classes can subscribe to events by providing their event listener. An event class must extend java.util.EventObject class. Below you [...] I have coded another helper program to a popular game using Robot class of Java. In this game, players are trying to score baskets in a 2d pitch by shooting the ball random positions to a basket of which position remains unchanged. The players only decide highest point of the path of the ball. By [...] When operations on different character sets need to be done in Java, we need to initialize JVM with required options. First lets have a look at basics of java character encodings. Internally the JVM always operates with Unicode. Too many clicks are needed while playing games like farmville. To this automatically, firstly I used a tool named xdotools which generates false keyboard and mouse input. But, since xdotools only supports X11, I switched to Java to have a platform independent program. java.awt.Robot class can be used to generate false input in Java. You can [...] While dealing with lambda calculus expression that I mentioned in my previos post, from time to time many paranthesis appears. Exampli gratia: While trying to SKI equivalent of λx.λy.+ x y, intermediate expressions like S (S (K S) (S (K (S (K +))) (S (λx K) (λx x)))) (λx I) can be encountered. While dealing with such expression text [...] Define S, K and I as S x y z = x z (y z) K x y = x I x = x Apply following transformations to lambda calculus expression until the expression becomes free of lambda abstractions and variables. 1) λx.e1 e2 => S (λx e1) (λx e2) 2) λx.x => I 3) λx.c => K c [Here, c should [...] Bir masaüstü ya da web uygulaması geliştirirken çoğunlukla süreklilik gösterecek (persistent) veriye gereksinim duyulur. Süreklilik gösterecek veriler dosya sistemi ya da veritabanı gibi araçlar kullanarak saklanıp kullanılabilir. Bu yazımda MySQL Workbench kullanarak nasıl veritabanı oluşturulacağından söz edeceğim. MySQL’de komut satırı kullanarak veritabanı, tablo vs. oluşturmaktansa MySQL Workbench kullanarak verimizi daha hızlı bir biçimde tasarlayıp verimize uygun [...] WP Cumulus Flash tag cloud by Roy Tanck and Luke Morton requires Flash Player 9 or better. |
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