Data Types That Can Be Used in a Switch Statement

Which of the following data types can be used in a switch statement? 
(Choose all that apply.)

A. enum
B. int
C. Byte
D. long
E. String
F. char
G. var
H. double

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Explanation

Switch statements are useful when you need to compare a variable against multiple values, and then perform different actions based on the value of the variable.

First, the statement says that a switch statement supports the primitives int, byte, short, and char, along with their associated wrapper classes Integer, Byte, Short, and Character, respectively. This means that options B, C, and F are correct.

Next, the statement says that switch statements also support enum and String, making options A and E correct.

Finally, the statement says that switch supports var if the type can be resolved to a supported switch data type, making option G correct. This means that if you declare a variable using the var keyword, and the type of the variable can be determined from the context in which it is used, then it can be used in a switch statement. For example, if you have a variable that is assigned an int value, you can declare it like this: var myVar = 42; and then use it in a switch statement.

Options D and H are incorrect because long, float, double, and their associated wrapper classes Long, Float, and Double, respectively, are not supported in switch statements.

There are several options given in the question, and we need to choose all the data types that can be used in a switch statement.

The correct answers are A, B, C, E, F, and G.

So, in summary, the data types that can be used in a switch statement in Java are: enum, int, Byte, String, char, and var.

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