Putting try catch finally block inside another finally block

Question

 try {
 } catch() {}
 finally {
     try {
     } catch() { }
     finally { }
 }

Is it good to have the code like above?

Answer 1

For readability you can factor out the nested try-catch in to a separate method, like:

  try{
  }catch(){}
  finally{
    cleanup();
  }

And the second try-catch can be inside the cleanup method.

To support the above pattern in IO package, JAVA6 introduces a new class called Closeable that all streams implement, so that you can have a single cleanup method as follows:

public static boolean cleanup(Closeable stream)
{
try{
    stream.close();
    return true;
  }catch(){
    return false;
  }
}