public
interface
Callable
java.util.concurrent.Callable<V>
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.
Summary
Public methods | |
|---|---|
abstract
V
|
call()
Computes a result, or throws an exception if unable to do so. |
Public methods
call
public abstract V call ()
Computes a result, or throws an exception if unable to do so.
| Returns | |
|---|---|
V |
computed result |
| Throws | |
|---|---|
Exception |
if unable to compute a result |