C# Variables

bool - stores values with two states: true or false

• True

• False

string - stores single characters, such as 'a' or 'B'. Char values are surrounded by single quotes

• True

• False

char - stores text, such as "Hello World". String values are surrounded by double quotes

• True

• False

int - stores floating point numbers, with decimals, such as 19.99 or -19.99

• True

• False

double - stores integers (whole numbers), without decimals, such as 123 or -123

• True

• False

Which of the following is a correct variable name?

• int

• double

• 10A

• grade10

Which of the following is a correct variable name?

• Myvar

• my var

• my-var

• my_var

Which of the following is a correct variable name?

• MyNum

• myNum

• 1myNum

• myNum@

Which of the following is a wrong variable name?

• firstnum

• first_num

• first-num

• firstNum

Which of the following is a wrong variable name?

• 1stNum

• secondNum

• firstnum

• second_num