23 Questions
A variable is an untyped name for a location in memory.
False
A variable declaration must specify the variable's name and the type of data it will hold.
True
A variable name can have spaces and is not case sensitive.
False
String name = 'Obama'; is an example of a valid variable declaration in C#.
True
Int age = '30'; is a valid variable declaration in C#.
False
Double price = 15.25; is an example of a valid variable declaration in C#.
True
Boolean dataplan = 1; is a valid variable declaration in C#.
False
Int digit = 10 % 2; will output 2.
False
The basic selection statement is the if-else statement.
False
Which of the following is NOT a valid variable declaration in C#?
Int age = '30';
What is the role of a variable in programming?
To hold a specific value in memory
Which of the following is NOT a valid variable naming rule in C#?
Can start with a number
What type of information does a 'boolean' variable hold?
True or False values
What would be the output of 'int digit = 10 % 2;' in C#?
0
In C#, which of the following types represents decimal numbers?
Double
In C#, which construct is used to execute a block of statements depending on a Boolean expression?
if statement
Which type of statement in C# allows for the execution of different blocks of code depending on whether a Boolean expression is true or false?
if-else statement
What is the purpose of the 'else if' part in an if-else statement in C#?
To check for multiple conditions after the initial condition is false
Which logical operator in C# is used to check if two conditions are both true before executing a block of code?
&&
What is the primary purpose of using a foreach loop in C#?
To reduce the risk of indexing error and provide read only access to the elements in the collection
In C#, what type of object can be iterated over using a foreach loop?
Arrays, collections, and enumerable objects
When should a regular for loop be used instead of a foreach loop in C#?
When the elements in the collection need to be modified during iteration
What is the key characteristic of a foreach loop in C#?
It is read-only and does not allow modification of collection elements
Test your knowledge of Object Oriented Programming Chapter One concepts with this quiz. Topics include programming languages, syntax, and encoding instructions for computers.
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