How can I break from a try catch block without throwing an exception in Java

Question

I need a way to break from the middle of try catch block without throwing an exception  Something that is similar to the break and continue in for loops  Is this possible   I have been getting weird throughts about throwing a custom exception  naming it  BreakContinueException   that simple does nothing in its catch handler  I m sure this is very twisted   So  any straight forward solution I m not aware of

User · Accepted Answer

The proper way to do it is probably to break down the method by putting the try-catch block in a separate method, and use a return statement:

public void someMethod() {
    try {
        ...
        if (condition)
            return;
        ...
    } catch (SomeException e) {
        ...
    }
}

If the code involves lots of local variables, you may also consider using a break from a labeled block, as suggested by Stephen C:

label: try {
    ...
    if (condition)
        break label;
    ...
} catch (SomeException e) {
    ...
}

User · Answer

This is the code I usually do    try                        throw null   this line just works like a  break                           catch  NullReferenceException             catch  System Exception ex

User · Answer

Various ways    return break or continue when in a loop break to label when in a labeled statement  see  aioobe s example  break when in a switch statement          System exit       though that s probably not what you mean      In my opinion   break to label  is the most natural  least contorted  way to do this if you just want to get out of a try catch   But it could be confusing to novice Java programmers who have never encountered that Java construct   But while labels are obscure  in my opinion wrapping the code in a do     while  false  so that you can use a break is a worse idea   This will confuse non-novices as well as novices   It is better for novices  and non-novices   to learn about labeled statements     By the way  return works in the case where you need to break out of a finally   But you should avoid doing a return in a finally block because the semantics are a bit confusing  and liable to give the reader a headache

User · Answer

In this sample in catch block i change the value of counter and it will break while block   class TestBreak       public static void main String   a            int counter   0           while counter lt 5                try                   counter                    int x   counter 0                            catch Exception e                    counter   1000                                     k

User · Answer

There are several ways to do it    Move the code into a new method and return from it Wrap the try catch in a do  while false   loop

User · Answer

You can always do it with a break from a loop construct or a labeled break as specified in aioobies answer   public static void main String   args        do           try                  code               if  condition                  break                 more code              catch  Exception e                     while  false

[java] How can I break from a try/catch block without throwing an exception in Java

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