Computer Knowledge

GUI and Web Frameworks

1,711 Questions

Graphical user interface and web frameworks involve layout management, directives, and application design across platforms like Android and Angular. These concepts are tested in computer science and IT officer competitive exams. Review these questions to understand UI components and coding standards.

Android layout attributesAngular structural directivesVB.Net web methodsJava Swing componentsSiebel application framework

GUI and Web Frameworks Questions

Multiple choice

Which of the following methods is present in the CardLayout class in Java?

  1. removeLayoutComponent(Component c)

  2. removeComponent(Component c)

  3. maxLayoutSize(Container c)

  4. preferredSize(Container c)

  5. addLayoutComponent(Component c, Object constraints)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct choice. removeLayoutComponent(Component c) method is present in the CardLayout class in Java. 

Multiple choice

Which of the following methods in BlockView class determines the maximum span for a view along an axis?

  1. getMaximumSpanAxis(int axis)

  2. getMaxSpanAxis(int axis)

  3. getMaximumSpan(int axis)

  4. getMaxSpanAxis(int axis)

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct choice. getMaximumSpan(int axis) method is present in the BlockView class and it determines the maximum span for a view along an axis, which is specified as an argument to it.

Multiple choice

Which of the following is called the Container class in Abstract Window Toolkit (AWT) in Java?

  1. It is an abstract superclass of AWT components.

  2. It is a subclass of Component class and is used to hold the other components.

  3. It is a top level window with a title and a border.

  4. It is a top level window with a title and a border and is used to take input from the user.

  5. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, this is called the Container class in AWT hierarchy.

Multiple choice

AppletViewer tool is available in which of the folder of JDK

  1. bin

  2. lib

  3. source

  4. class
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The AppletViewer tool, like other JDK utilities such as javac and java, is located in the bin directory of the JDK installation. The bin folder contains executable programs and tools, while lib contains libraries and class files.

Multiple choice

To determine the width and height of an application, which of the following method is used?

  1. getWidthHeight()

  2. setWidthHeight()

  3. getSize()

  4. setHeightWidth()
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The getSize() method returns a Dimension object containing both the width and height of an applet or component. There is no standard getWidthHeight() or setWidthHeight() method in the Java AWT framework - you use getSize() to retrieve dimensions and setSize() to set them.

Multiple choice

What are the interfaces to deal with Applet applications?

  1. AppletContext, AppletConfig

  2. AppletContext, AppletStub, AudioClip

  3. AppletConfig, AppletStub, AudioClip

  4. AppletConfit,AppletStub, VideoClip
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The standard interfaces associated with Applet applications in the legacy java.applet package include AppletContext, AppletStub, and AudioClip. These provide communication capabilities, audio playing, and applet environment management.

Multiple choice

Window, Panel and ScrollPane are the subclasses of

  1. Container class

  2. Component class

  3. Frame class

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In Java AWT, Window, Panel, and ScrollPane all extend Container directly. Container is an abstract class that extends Component and adds the ability to hold child components.

Multiple choice

Which of the following methods set the frame surface color to pink?

  1. setBackground(Color.pink);

  2. setColor(PINK);

  3. Background(pink);

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The setBackground(Color) method, inherited from Component, sets the background color of any component including Frame. Color.pink is the correct way to specify pink color in Java AWT.