What do logical operators enable programmers to accomplish?

Logical operators are essential tools in programming that allow developers to combine multiple expressions into a single, composite expression. This capability is crucial for making complex decisions based on multiple conditions. For instance, using logical operators such as AND, OR, and NOT, programmers can evaluate whether several conditions are true or false simultaneously.

For example, if a program needs to check if a user is both logged in and has admin privileges, logical operators can be used to combine two boolean expressions: isLoggedIn AND isAdmin. The outcome of this combined expression can then dictate the flow of the program, such as permitting or denying access to certain features.

In contrast, separating different code blocks pertains to structuring code through delimiters like braces or indentation, which is not the role of logical operators. Enhancing code readability often involves comments or formatting rather than the functionality of logical operators. Defining variable types relates to how data is represented and stored in programming languages, which is distinct from the operation of logical operators.

Thus, the capacity of logical operators to effectively combine multiple expressions makes them a fundamental aspect of logical reasoning in programming.