CS506 Quiz 3

Q1. In the context of Java Thread, sleep() method throws __________ exception.

1. Input Output
2. Interrupted
3. Index Out of bound
4. File not found

Correct answer: Interrupted

Q2. Which of the following method allows any other thread of same priority to execute?

1. wait()
2. sleep()
3. yield()
4. notify()

Correct answer: yield()

Q3. Which of the following objects is passed as an argument to paintComponent() method?

1. JPanel object
2. Graphics object
3. JFrame object
4. Image object

Correct answer: Graphics object

Q4. If a JPanel has a triangle drawn on it then which of the following methods will display it?

1. paintBorder( )
2. paint( )
3. paintChildern( )
4. paintComponet( )

Correct answer: paintComponet( )

Q5. Which of the following method needs to override while handling threads in java?

1. runnable()
2. init()
3. start()
4. run()

Correct answer: run()

Q6. Which of the following statement is correct to assign maximum priority to thread “t2”?

1. t2.setPriority(Thread.PRIORITY_MiX);
2. t2.setPriority(Thread.MAX_PRIORITY);
3. t2.setPriority(Thread.MIX_PRIORITY);
4. t2.setPriority(Thread.PRIORITY_MAX)

Correct answer: t2.setPriority(Thread.MAX_PRIORITY);

Q7. Which of the following methods is called only once during the life cycle of an Applet?

1. paint()
2. start( )
3. stop()
4. destroy()

Correct answer: destroy()

Q8. Which of the following methods of Graphics object is used to draw rectangle?

1. DrawReactangle(10,10,20,20);
2. drawReactangle(10,10,20,20);
3. drawRect(10,10,20,20);
4. DrawRect(10,10,20,20);

Correct answer: drawRect(10,10,20,20);

Q9. Choose correct integer value for predefined Thread Priority "Thread.NORM_PRIORITY" in Java.

1. 1
2. 10
3. 7
4. 5

Correct answer: 5

Q10. In _____________ state, thread is assigned a processor to run.

1. running
2. dead
3. ready
4. new

Correct answer: running