Which of the following layout managers can be used to display nine Button objects at one time? : Questions « Utility Classes « SCJP

Home
SCJP
1.Java Source And Data Type
2.Operators
3.Modifiers
4.Type Casting
5.Statements
6.Object Oriented
7.Thread
8.Utility Classes
9.File
SCJP » Utility Classes » Questions 
8.34.13.Which of the following layout managers can be used to display nine Button objects at one time?
A.      BorderLayout
   B.      GridLayout
   C.      CardLayout
   D.      GridBagLayout
8.34.Questions
8.34.1.A Hashtable requires String objects as keys(True/False).
8.34.2.Answer: hash table key
8.34.3.A Hashtable maintains object references in the order they were added(True/False).
8.34.4.Answer: hash table value reference
8.34.5.Both Vector and Hashtable use synchronized methods to avoid concurrent problems(True/False).
8.34.6.Answer: synchronization Vector and Hashtable
8.34.7.Which of the following are interfaces? [Check all correct answers]
8.34.8.Answer: collection interface and class
8.34.9.Which class is most similar to the Vector class?
8.34.10.Answer: Vector like collections
8.34.11.Which interface does Hashtable implement?
8.34.12.Answer: interface for Hashtable
8.34.13.Which of the following layout managers can be used to display nine Button objects at one time?
8.34.14.Answer: layout
8.34.15.Which of the following are valid alignment parameters for a FlowLayout?
8.34.16.Answer: flow layout
8.34.17.Which of the following layout managers does not alter the height of a component?
8.34.18.Answer: layout and component height
8.34.19.For JPanel(new GridLayout(4,4,5,8)), the horizontal space between the buttons will be five pixels(True/False).
8.34.20.Answer: GridLayout
8.34.21.For GridLayout, the order in which the Button objects are added controls their position, filling a row first, from left to right (True/False).
8.34.22.Answer: GridLayout(3)
8.34.23.Which variable in the GridBagConstraints class can use the constant named CENTER?
8.34.24.Answer: GridBagConstraints
8.34.25.Which layout manager ensure that at least a portion of each button added is displayed even when the Panel has been resized to a small size?
8.34.26.Answer: layout manager
8.34.27.Which constant names are valid positioning options in the GridBagConstraints class?
8.34.28.Answer: using GridBagConstraints
8.34.29.Which of the following classes produce immutable objects?
8.34.30.Answer: immutable objects
8.34.31.What is the result(autoboxing and parameter passing)?
8.34.32.Answer: autoboxing and parameter passing
8.34.33.What happens when you compile and run code containing the following lines?
8.34.34.Answer: autoboxing and calculation
8.34.35.What is the output(substring and file extension name)?
8.34.36.Answer: substring and file extension name
8.34.37.What is the result(String reference)?
8.34.38.Answer: String reference
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.