Lesson: 14 | Booleans

Notes

A boolean type in Apex is declared with the boolean keyword and can only take the values true or false:

boolean isPrime = true;
System.debug(isPrime );

Output: true

A Boolean expression is an expression that returns a Boolean value: true or false.

Integer x = 12;
Integer y = 12;
System.debug(x == y);

System.debug(12 == 12);

Output: true

System.debug(2 > 1);

Note: The above code returns true because 2 is greater than 1.

System.debug(1 < 0);

Note: The above code returns false because 1 is not less than 0.

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