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Java Programming : java.awt and java.io : Multiple Choice


Learn about java.awt and java.io packages.

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Multiple choice

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1.

Which of the following strings can be used as mode strings for creating a RandomAccessFile object?
(A) "r"
(B) "w"
(C) "rw"
(D) "wr"
(E) "0"

  (A), (B), (C) & (E)

  (A) & (C)

  (A), (B) & (C)

  (C) & (D)

  (B), (D) & (E)

  Half-n-half Clue
 

2.

Which exception is thrown by the read() method of InputStream class?

  FileNotFoundException

  ReadException

  None of these

  IOException

  Exception

  Half-n-half Clue
 

3.

Which of the following methods can be used to remove a java.awt.Component object from the display?

  remove()

  move()

  disappear()

  delete()

  hide()

  Half-n-half Clue
 

4.

When we invoke repaint() for a java.awt.Component object, the AWT invokes the method:

  paint()

  update()

  draw()

  show()

  Half-n-half Clue
 

5.

If you want to assign a value of 99 to the variable year, then which of the following lines can be used within an tag?

  < param = radius value = 99 >

  < param name = number value = 99 >

  < number = 99 >

  < param number = 99 >

  number = getParameter(99)

  Half-n-half Clue
 

6.

Which of the following applet tags is legal to embed an applet class named Test into a Web page?

  < applet
param = Test.class width = 200 height = 100>

  < applet>
code = Test.class width = 200 height = 100>

  < applet
code = Test.class width = 200 height = 100

  < applet
class = Test width = 200 height = 100>

  < applet
code = Test.class width = 200 height = 100>

  Half-n-half Clue
 

7.

The setBackground() method is part of the following class in java.awt package:

  Graphics

  Object

  Applet

  Container

  Component

  Half-n-half Clue
 


 
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