How does an if statement differ from a switch statement in Java?

• A. An if statement selects based on a boolean expression
• B. A switch statement only allows two alternatives
• C. An if statement can only evaluate integer expressions
• D. A switch statement can only handle boolean conditions

Answer: (A)

An if statement in Java evaluates a boolean expression to determine which block of code to execute. This makes it versatile, as it can handle a wide range of conditions, including expressions that evaluate to true or false. It can also accommodate complex conditions that involve multiple relational operations and logical operators. This flexibility allows developers to include various types of comparisons beyond just equality, such as greater than, less than, and using logical conjunctions or disjunctions.

In contrast, a switch statement is primarily used for selecting among multiple possible actions based on the value of a single expression, which typically should be of specific types such as primitive int, char, or String. However, it does not evaluate boolean expressions in the same way that an if statement does.

Consequently, the other options presented do not accurately reflect the differences between the two constructs: a switch statement can handle multiple alternatives and is not limited to only two; an if statement is not restricted to evaluating only integer expressions; and a switch statement does not exclusively work with boolean conditions, but rather with values that allow for matching multiple case statements.