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Switch case statements in apex

Switch case statement checks a value against multiple predefined options (called cases). Depending on the matching case, it executes the corresponding block of code. If none of the cases match, a default block (optional) can be executed.

Following is an example of traffic lights and vehicle speed in a switch case statement.

Swith Case Statements

Branch the execution of the code based on predefined input values

Cases

Case 1 - traffic light is green

Executed when trafficLight is set to green.

To translate the above requirement as a switch case statement, use the following syntax:

In the above example:

The variable trafficLight is the input variable for the switch case statement.
The values gree, yellow, read are the expected values.
If the input variable trafficLight receives one of the predefined values, the respective blocks is executed.
If the input variable trafficLight receives a value other than the predefined values, the else statement is executed.

Try It Yourself

Execute

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