Given the code fragments:
class Caller implements Callable {
String str;
public Caller (String s) {this.str=s;}
public String call()throws Exception { return str.concat (''Caller'');}
}
class Runner implements Runnable {
String str;
public Runner (String s) {this.str=s;}
public void run () { System.out.println (str.concat (''Runner''));}
}
and
public static void main (String[] args) throws InterruptedException, ExecutionException {
ExecutorService es = Executors.newFixedThreadPool(2);
Future f1 = es.submit (new Caller (''Call''));
Future f2 = es.submit (new Runner (''Run''));
String str1 = (String) f1.get();
String str2 = (String) f2.get();//line n1
System.out.println(str1+ '':'' + str2);
}
What is the result?
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