201. Which of the following has member elements?
a) Class
b) Interface
c) Both
d) None
202. Which of the following can be used for implementing runtime polymorphism ?
203. Parent of all collection classes is a/an ….?
204. Which exception is thrown by the read() method of InputStream class?
a) IOException
b) FileNotFoundException
c) ReadException
d) Exception
205. Which of the following methods can be used to remove a java.awt.Component object from the display?
a) remove()
b) disappear()
c) hide()
d) delete()
206. Which of the following sets the frame to 300 pixels wide by 200 high?
a) frm.setSize( 300, 200 );
b) frm.setSize( 200, 300 );
c) frm.paint( 300, 200 );
d) frm.setVisible( 300, 200 );
207. What is a Graphics object?
a) The Graphics object represents the part of the Frame that you can draw on.
c) The Graphics object represents the entire monitor.
b) The Graphics object represents the whole Frame
d) The Graphics object represents the graphics board.
208. In Java, the default layout manager for a JFrame component is
a) BorderLayout
b) GridBagLayout
c) FlowLayout
d) GridLayout
209. The ListSelectionEvent class and ListSelectionListener interface are available in the _____ package of Java.
a) java.awt.event
b) javax.swing.event
c) javax.event
d) java.event
210. Which of the following categorizations can be applied to both the data fields and the methods in a Java class?
a) static and non-static
b) default and non-default
c) abstract and non-abstract
d) native and non-native
211. Which is a Java access modifier used to designate that a particular data field will not be inherited by a subclass?
a) protected
b)final
c)private
d) default
212. Which of these will happen if recursive method does not have a base case?
a) An infinite loop occurs
c) After a lot of calls it will be automatically stopped.
b) System stops the program after some time.
d) None of the above
213. Which of these is not a correct statement?
a) A recursive method must have a base case.
b) Recursion always uses stack.
c) Recursive methods are faster that programmers written loop to call the function repeatedly
d) Recursion is managed by Java’s run time environment.
214. Which of these packages contains the exception Stackoverflow in Java?
a) java.lang
b) java.util
c) java.io
d) java.system
