What data type is used to store true or false values?

The data type used to store true or false values is the Boolean data type. Booleans are specifically designed to represent two possible states: true and false. This is particularly useful in programming for control flow, decisions, and logical operations. For example, a conditional statement can evaluate whether a certain condition is true or false, allowing the program to execute different branches of code based on that evaluation.

While an integer can be used to represent true and false (typically, 1 for true and 0 for false), it is not inherently designed for this purpose; thus, using an integer for boolean logic can lead to confusion and errors in code readability. Strings, which are sequences of characters, and chars, which represent single symbols, do not provide a clear method for representing boolean values. Consequently, the Boolean data type stands out as the most logical and straightforward choice for capturing true or false states in coding practices.