11.  Which of these packages contain all the Java's built in exceptions ?


java.io
java.util
java.lang
java.net


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12.  Which interface does java.util.Hashtable implement ?


Java.util.Collection
Java.util.List
Java.util.HashTable
Java.util.Map


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13.  Public class MyRunnable implements Runnable
{
public void run()
{
}
}
Which of these will create and start this thread ?


new Thread(MyRunnable).run();
new Thread(new MyRunnable()).start();
new Runnable(MyRunnable).start();
new MyRunnable().start();


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14.  If one thread opens a file with read privileges then


other threads in the another process can also read from that file
other threads in the same process can also read from that file
any other thread can not read from that file
all of the mentioned


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15.  Which of these are types of multitasking ?


Process based
Thread based
Process and Thread based
None of the mentioned


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