import java.util.*;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;

import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		FutureTask<String> task = new FutureTask(new SampleCallable());
		task.run();
		System.out.println("Task done: " + task.isDone());
		System.out.println(task.get());
	}
	
	public static class SampleCallable implements Callable<String> {
		@Override public String call() {
			throw new RuntimeException("This is a failure!");
		}
	}
}