Can we use switch case in CPP?

Switch Case in C++ A switch case is used test variable equality for a list of values, where each value is a case. When the variable is equal to one of the cases, the statements following the case are executed. A break statement ends the switch case.

In which situation is a switch-case desirable?

If you have conditions where values are fixed or you have options like 1,2,3,4 and so on. for example program for automated complaint services where options are there and you have to choose any one according to your problems. In such situations using SWITCH statement in the program is the best.

How do you write a switch case?

Important Points About Switch Case Statements:

  1. The expression provided in the switch should result in a constant value otherwise it would not be valid.
  2. Duplicate case values are not allowed.
  3. The default statement is optional.
  4. The break statement is used inside the switch to terminate a statement sequence.

How do switch cases work?

A statement in the switch block can be labeled with one or more case or default labels. The switch statement evaluates its expression, then executes all statements that follow the matching case label.

What is the limitation of switch case?

Answer. Switch case variables can have only int and char data type. So float or no data type is allowed. In this ch can be integer or char and cannot be float or any other data type.

How to use switch case in a break statement?

Switch Case statement is mostly used with break statement even though the break statement is optional. We will first see an example without break statement and then we will discuss switch case with break Explanation: In switch I gave an expression, you can give variable as well.

What is the default case in a switch statement?

A switch statement can have an optional default case, which must appear at the end of the switch. The default case can be used for performing a task when none of the cases is true.

What happens when a switch is equal to a case?

When the variable being switched on is equal to a case, the statements following that case will execute until a break statement is reached. When a break statement is reached, the switch terminates, and the flow of control jumps to the next line following the switch statement.

Why do we end each case block with a break statement?

Whenever a break statement is encountered in the switch body, the execution flow would directly come out of the switch, ignoring rest of the cases. This is why you must end each case block with the break statement. Let’s take the same example but this time with break statement.