GWT Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to GWT. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - Which of the following is correct about GWT?

A - Application written in GWT is cross-browser compliant.

B - GWT automatically generates javascript code suitable for each browser.

C - GWT is open source and is licensed under the Apache License version 2.0.

D - All of the above.

Answer : D

Explaination

All of the above options are correct.

Q 2 - What is the purpose of 'inherits' tag in *.gwt.xml file in GWT?

A - This provides name of the application.

B - This adds other gwt module in application just like import does in java applications. Any number of modules can be inherited in this manner.

C - This specifies the name of class which will start loading the GWT Application.

D - None of the above.

Answer : B

Explaination

'inherits' tag in *.gwt.xml file adds other gwt module in application just like import does in java applications. Any number of modules can be inherited in this manner.

Q 3 - Do GWT compiler creates default Id attribute for its Widget by default?

A - true

B - false

Answer : B

Explaination

No! By default, neither the browser nor GWT creates default id attributes for widgets.

Q 4 - What is the purpose of setStylePrimaryName() function of a GWT widget?

A - This method will clear any existing styles and set the widget style to the new CSS class provided using style.

B - This method will add a secondary or dependent style name to the widget.

C - This method will remove given style from the widget and leaves any others associated with the widget.

D - This method sets the object's primary style name and updates all dependent style names.

Answer : D

Explaination

setStylePrimaryName() method sets the object's primary style name and updates all dependent style names.

Q 5 - Which of the following gwt widget acts as a suggestion box?

Answer : C

Explaination

SuggestBox widget acts as a suggestion box. SuggestBox widget represents a text box or text area which displays a pre-configured set of selections that match the user's input. Each SuggestBox is associated with a single SuggestOracle. The SuggestOracle is used to provide a set of selections given a specific query string.

Q 6 - Which of the following gwt widget represents a view of a tree?

Answer : C

Explaination

CellTree widget represents a view of a tree. This widget will only work in standards mode, which requires that the HTML page in which it is run have an explicit <!DOCTYPE> declaration.

Q 7 - Which of the following panel formats its child widgets using the default HTML layout behavior?

Answer : B

Explaination

FlowPanel widget represents a panel that formats its child widgets using the default HTML layout behavior.

Q 8 - Which of the following GWT widget represents a panel that can pop up over other widgets?

Answer : C

Explaination

PopupPanel widget represents a panel that can pop up over other widgets. It overlays the browser's client area (and any previously-created popups).

Q 9 - Which of the following GWT widget represents a form of popup that has a caption area at the top and can be dragged by the user?

Answer : D

Explaination

DialogBox widget represents a form of popup that has a caption area at the top and can be dragged by the user. Unlike a PopupPanel, calls to PopupPanel.setWidth(String) and PopupPanel.setHeight(String) will set the width and height of the dialog box itself, even if a widget has not been added as yet.

Q 10 - Which of the following logger logs to Firebug console.

A - SystemLogHandler

B - DevelopmentModeLogHandler

C - ConsoleLogHandler

D - FirebugLogHandler

Answer : D

Explaination

FirebugLogHandler logs to Firebug console.

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