Here's some dummy text to automatically resize the container as if there were actual text
Here's some dummy text to automatically resize the container as if there were actual text
Here's some dummy text to automatically resize the container as if there were actual text
Here's some dummy text to automatically resize the container as if there were actual text
1. Which of the following loops in C# does NOT need a conditional statement to execute?
Explanation
A foreach loop executes without a condition having to be true. A for loop has a conditional statement that determines if the loop should continue to the next cycle i.e. the statement in the middle like i < items.Length;.
2. What is the value of the isOnline variable in this C# code?
var isOnline = true && false;Explanation
When using the && operator, ALL boolean values must be true for the final value to be true. If even one of them is false, the final value will always be false.
3. What naming convention is used when naming fields in C#?
Explanation
Some people use Camel Case without the underscore, but the convention is to prefix the field with one. For example, private string _firstName.
4. What value will isLearningCSharp have in this code?
var isLearningCSharp = !true || false;Explanation
Only one option has to be true for the variable to be true, but since both are false, the variable ends up being false. I hope you're learning C# though!
5. What is the output of this C# code?
int x = 2;
int y = 4;
int z = x + y++;
Console.WriteLine(z);Explanation
The post-increment operator increases the value after it has been used in the expression. So x + y becomes 2 + 4, then y becomes 5.
6. What will this C# code log to the console?
var total = 3;
total +=5;
Console.WriteLine(total);Explanation
The += operator adds 5 to the previous value of total which is 3, resulting in 8. It can also be written like this total = total + 5.
7. If you use var to create a non-whole number variable in C# without a postfix, what type does the compiler infer that number to be?
Explanation
By default, any decimal number created with var is of type double unless you explicitly state otherwise or append the appropriate letter at the end of the number e.g. 23.9f for floats.
8. Where are using statements normally written?
Explanation
It's a convention to add using statements at the top of the file to ensure the code from the namespaces in the statements is imported first before being used in the current file.
9. Which of these is a legitimate string in C#?
Explanation
Option 1 is a raw string literal - the syntax is three double quotes on each side. Option 2 is an interpolated verbatim string - verbatim strings often start with an @ sign. Option 4 is the regular string you've probably seen before.
Click here to discover more interesting things about strings10. What will this C# code log to the console?
while (true)
{
Console.WriteLine("I'm walking on sunshine")
}Explanation
Since the loop's condition is permanently true, the message will be logged to the console continuously until either the application is stopped or crashes.
