AI-generated Key Takeaways
-
Callableis an interface defining a single methodcall()for tasks that return a result and may throw an exception. -
It is similar to
Runnable, but allows for returning a result and throwing checked exceptions, suitable for execution by another thread. -
The
Executorsclass provides methods to convert other forms intoCallableclasses. -
The
call()method is responsible for computing a result and potentially throwing an exception if computation fails.
A task that returns a result and may throw an exception.
Implementors define a single method with no arguments called
call.
The Callable interface is similar to Runnable, in that both are designed for classes whose
instances are potentially executed by another thread. A
Runnable, however, does not return a result and cannot
throw a checked exception.
The Executors class contains utility methods to
convert from other common forms to Callable classes.
See Also
Public Method Summary
| abstract V |
call()
Computes a result, or throws an exception if unable to do so.
|
Public Methods
public abstract V call ()
Computes a result, or throws an exception if unable to do so.
Returns
- computed result
Throws
| Exception | if unable to compute a result |
|---|