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.
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.
(call this)
Computes a result, or throws an exception if unable to do so.
returns: computed result - V
throws: java.lang.Exception - if unable to compute a result
Computes a result, or throws an exception if unable to do so. returns: computed result - `V` throws: java.lang.Exception - if unable to compute a result
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