Q31
Q31 How can you handle exceptions in Dart?
Using try and catch blocks
Using if-else statements
Using switch-case statements
Using break statements
Q32
Q32 A Dart developer is experiencing unexpected behavior in their code. Which tool can they use to debug the issue?
dartfmt
dart analyze
dart doc
dart test
Q33
Q33 Which widget in Flutter is used to display a long list of items?
GridView
ListView
Column
Row
Q34
Q34 What is the purpose of the Container widget in Flutter?
To organize the app's routes
To define a single child widget with padding, margin, and constraints
To create a scrollable list
To handle user input
Q35
Q35 Which widget is used for creating a scrollable list of items in a single column in Flutter?
GridView
ListView
Stack
Row
Q36
Q36 What does the Expanded widget do in a Row or Column?
It collapses the child widget
It makes the child widget invisible
It fills the available space in the parent
It aligns the child widget to the left
Q37
Q37 Which widget would you use to create a fixed-size box in Flutter?
Container
SizedBox
Flexible
Wrap
Q38
Q38 Which widget can be used to overlay widgets on top of each other?
Column
Stack
Row
ListView
Q39
Q39 What does the following code snippet do?
\n\n\nContainer(
\n padding: EdgeInsets.all(16.0),
\n child: Text("Hello World"),
\n)\n
Adds a margin around the text
Adds padding around the text
Centers the text
Makes the text bold
Q40
Q40 How would you create a circular avatar in Flutter?
\n\n\nCircleAvatar(
\n radius: 50,
\n backgroundImage: NetworkImage('https://example.com/avatar.jpg'),\n)\n
,%5Cn)%5Cn){kind=link}
Using CircleAvatar widget
Using Container widget
Using ClipOval widget
Using Stack widget
Q41
Q41 What is the result of the following Flutter code?
\n\n\nColumn(
\n children:
\n Text("Hello"),
\n Text("World"),
\n ],
\n)\n
Displays "Hello" and "World" in a row
Displays "Hello" and "World" in a column
Displays "Hello" and "World" with padding
Throws an error
Q42
Q42 What does the InkWell widget do in Flutter?
\n\n\nInkWell(
\n onTap: () {
\n print("Tapped");
\n },
\n child: Container(
\n padding: EdgeInsets.all(16.0),\n child: Text("Tap Me"),\n ),\n)\n
Adds padding around the text
Displays a clickable area
Makes the text bold
Changes the background color
Q43
Q43 If a Text widget is not displaying correctly inside a Column, what could be a possible reason?
Incorrect text alignment
The Column widget does not support Text widgets
Text widget needs to be wrapped in an Expanded widget
Lack of padding
Q44
Q44 A developer is using a Row widget, but its children are not evenly spaced. What could be the solution?
Use MainAxisAlignment.spaceBetween
Wrap children in Container widgets
Use Column instead of Row
Increase the width of the parent widget
Q45
Q45 Which layout widget allows you to arrange its children in a vertical column?
Row
Column
Stack
GridView
Q46
Q46 Which widget is used to create a grid-based layout in Flutter?
ListView
Column
GridView
Stack
Q47
Q47 What does the Padding widget do in Flutter?
Adds margin
Adds padding
Sets background color
Sets border
Q48
Q48 Which widget allows for both horizontal and vertical scrolling?
SingleChildScrollView
CustomScrollView
Scrollable
ScrollView
Q49
Q49 How do you create a flexible layout in Flutter?
Using Column widget
Using Row widget
Using Flexible widget
Using Stack widget
Q50
Q50 What is the role of the Wrap widget in Flutter?
To arrange widgets in a horizontal row
To arrange widgets in a vertical column
To arrange widgets in a horizontal or vertical layout with wrapping
To arrange widgets in a stack
Q51
Q51 What is the result of the following Flutter code?
\n\n\nRow(
\n children:
\n Text("Hello"),
\n Text("World"),
\n ],
\n)\n
Displays "Hello" and "World" in a column
Displays "Hello" and "World" in a row
Displays "Hello" and "World" with padding
Throws an error
Q52
Q52 What does the Expanded widget do in the following code?
\n\n\nRow(
\n children:
\n Expanded(child: Text("Hello")), \n Text("World"),\n ],\n)\n
It collapses the child widget
It makes the child widget invisible
It expands the child to fill the available space
It aligns the child widget to the left
Q53
Q53 What is the purpose of the Align widget in Flutter?
\n\n\nAlign(
\n alignment: Alignment.topRight,
\n child: Text("Hello"),
\n)\n
Centers the child widget
Aligns the child widget within its parent
Adds padding to the child widget
Adds a border to the child widget
Q54
Q54 If a widget is overflowing in a Column, what could be a possible solution?
Remove the widget
Wrap the widget in an Expanded widget
Use a Row instead of Column
Change the widget's color
Q55
Q55 A Row widget's children are not visible as expected. What could be a solution to this issue?
Increase the height of the parent widget
Use Expanded widgets
Check for overflow issues
Ensure children have a fixed width
Q56
Q56 Which widget in Flutter is used to manage state locally?
StatefulWidget
StatelessWidget
InheritedWidget
Provider
Q57
Q57 What method is used to update the state of a StatefulWidget?
setState
updateState
refreshState
changeState
Q58
Q58 Which state management approach is built on top of InheritedWidget?
Redux
Provider
Bloc
Riverpod
Q59
Q59 In the context of state management, what does the term "lifting state up" refer to?
Moving state to a higher widget in the tree
Removing state from the widget tree
Copying state to a lower widget
Isolating state within a widget
Q60
Q60 What is the primary benefit of using the Bloc pattern for state management?
Simplifies UI design
Enhances app performance
Enforces a unidirectional data flow
Reduces code complexity
