Booleans are true or false statements. Unlike strings or numbers, booleans store statements of truth: is what I am saying true or false? For example, if I ask, “Are you a robot?”, this question produces a true or false result, which we call a Boolean. In this case, since you are not a robot (hopefully!), we would produce false.

We can also use math operators to create boolean expressions. Here are some examples; however, notice the unusual symbols for “equal to” and “not equal to”:

<Less than>Greater than
<=Less than or equal to>=Greater than or equal to
==Equal to!=Not equal to

As usual, use Console.WriteLine to print out your results:

Console.WriteLine(10 < 8);
Console.WriteLine((3 * 6) == (32 - 14));

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Working Together

Try guessing the answers to the following expressions. Use Console.WriteLine to check your answers.

  • 54 < (10 + 32)
  • (37 / 5) == 7
  • "Hello" + "World" == "Hello World"
  • false == false

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