L3 Flashcards
What are operators in C#?
Operators are special symbols that perform operations on operands, such as integers, real numbers, Boolean values, and objects.
What is the result of 10 % 4?
2
What is the difference between x++ and ++x?
x++ increases after, ++x increases before.
Which operator is used to check equality?
==
Which of these will print true?
Console.WriteLine(5 > 3 && 2 < 1);
false
What is the output of the following?
int x = 14, y = 3;
Console.WriteLine(x / y);
4
What is the output of the following?
double num1 = 14, num2 = 3;
Console.WriteLine(num1 / num2);
4.66667
What does x += 5 mean?
x = x + 5
What does the && operator do?
It checks if both conditions are true.
What is the output of the following?
int result = 10 + 5 * 2;
Console.WriteLine(result);
20
What is the output of the following?
int corrected = (10 + 5) * 2;
Console.WriteLine(corrected);
30
What is implicit conversion in C#?
A safe type conversion where no data is lost, e.g., int → long.
What is explicit conversion (casting)?
A type conversion where data loss is possible, e.g., (int)double.
What does the ToString() method do?
It converts a number to a string.
