Today few comments on how to deal with Files, Streams, Connections and anything else that is ‘closeable’ in Java. To simplify we will focus on a FileWriter class and a simple code snippet with a bug that uses it:
public void writeToFile(String fileName, String content) {
try {
[...]
If you have been using Collections in Java 5 you probably have stumbled upon a problem of converting a given Collection<T> into an array of type T. In the Collection interface, there is a method called toArray() which returns an array of type Object[]. But then, if since Java 5 Collections are using generics, shouldn’t [...]
Probably many of you still remember the lack of type checking in Java 1.4 Collections and how much hassle it was to deal with casting the collection elements, not to mention how many errors this introduced to the code. Since introduction of generics in Java 1.5 this have really improved and one might think that [...]