java update properties file run time

Question

i am writing standalone java app for production monitoring. once it starts running the api is configured for default values which is set in .properties file. in running state the api's configuration can be changed and the .properties file should be updated accordingly. is there a way to achieve this ? or are there any other approaches to implement this ?

Thanks in advance

Answer 1

The Java Properties class (api here) specifies "load" and "store" methods which should do exactly that. Use FileInputStream and FileOutputStream to specify the file to save it into.