In a catch block avoid using the generic class Exception. For each try block use specific catch blocks based on what can go wrong in your code
Whenever you are using a throws clause always use the specific subclass of Exception like FileNotFoundException rather than using throws Exception.
Always use the finally block to release the resources like a database connection, closing a file or socket connection etc. This prevents resource leaks even if an exception occurs.
Do not use Exception handling in loops. It is better to place loops inside try/catch blocks than vice versa. Here is an code snippet that gives bench mark.
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