C++ Switch Statement
1. Define switch in C++.
The switch is a decision-making statement that can execute the different blocks of code based on the value of the expression specified.
2. Which statements are optional in the C++ switch?
The default and break are optional in the switch in C++.
3. What are the differences between switch and if else if ladder in C?
Following are the main differences between switch and if else if ladder in C++:
switch | if else if |
---|---|
It executes the different cases on the basis of the value of the switch variable. | It executes the different blocks based on the condition specified. |
It can only evaluate the int or char type expressions. | It can evaluate any type of expression. |
Faster and easier to read for a large number of conditions. | It can get messy when there are lots of conditions. |
Switch Statement in C++
The C++ Switch case statement evaluates a given expression and based on the evaluated value(matching a certain condition), it executes the statements associated with it. It is an alternative to the long if-else-if ladder which provides an easy way to dispatch execution to different parts of code based on the value of the expression.