Okay, Im working on a project that requires me to save a large volume of files. in the format .dat with information that the variable stores stored inside the file. Is there a way in Java 1.7 to create a variable with the name that it reads from file? If not what would be the best way to create an ever growing number of variables? Im at a bit of a loss, I don't know of a way to do what i need... Dpes anyone have any advice?
2 Answers
You can use any Map implementation like LinkedHashMap, HashMap or Hashtable. They all store objects classified by keys which have their corresponding values.
You would declare this object as:
Map myMap = new Hashtable<String, File>();
Do whatever implementation for file input, you can then use the put() method like:
myMap.put("fileName", fileInstance);
You can remove a key, check for a key existance, check for a value existance, iterate over the keys and over values.
Comments
You can use collections (i.e. List (java.util.List). You can also store the collection of your object in the file (I think use of serialize and de-serialize would increase your speed in reading and writing the data)
ListorMap.