Useful tips

Do switch statements work with integers?

Do switch statements work with integers?

A switch works with the byte , short , char , and int primitive data types. It also works with enumerated types (discussed in Enum Types), the String class, and a few special classes that wrap certain primitive types: Character , Byte , Short , and Integer (discussed in Numbers and Strings).

What is a switch statement in C?

C – switch statement A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.

Can we use int in switch case in C?

1) The expression used in switch must be integral type ( int, char and enum). Any other type of expression is not allowed.

What does a switch statement do in C?

A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.

Can a switch statement include two case constants?

The switch statement can include any number of case instances, but no two case constants within the same switch statement can have the same value. Execution of the statement body begins at the selected statement and proceeds until the end of the body or until a break statement transfers control out of the body.

Is the break statement optional in the switch statement?

1) The switch expression must be of an integer or character type. 2) The case value must be an integer or character constant. 3) The case value can be used only inside the switch statement. 4) The break statement in switch case is not must. It is optional.

Which is the default case in switch in C?

Explanation: In switch I gave an expression, you can give variable also. I gave num+2, where num value is 2 and after addition the expression resulted 4. Since there is no case defined with value 4 the default case is executed.