java.lang.ClassCastException

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  • java.lang.ClassCastException: ir.org.acm.multithreadpower.Main3$2 cannot be cast to java.util.concurrent.Callable at java.util.concurrent.AbstractExecutorService.invokeAll(AbstractExecutorService.java:235) at ir.org.acm.multithreadpower.Main3.main(Main3.java:35)
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