Is the SWITCH and CASE statement supported in APEX in Salesforce?

Question

Instead of this basic structure with IF / THEN / ELSEIF / ELSE

int month = 8;

String monthString;

if (month == 1) {

    monthString = "January";

} else if (month == 2) {

    monthString = "February";

}

...  // and so on

it would be nice to have

  int month = 8;

    String monthString;

    switch (month) {

        case 1:  monthString = "January";

                 break;

        case 2:  monthString = "February";

                 break;

        ..... // and so on

        case 12: monthString = "December";

                 break;

        default: monthString = "Invalid month";

                 break;

    }

This would increase readability and make it easier to debug due to clarity of intent.

Answer 1

Salesforce does support switch and Case statement in Salesforce. The switch statement is used to test whether an expression matches one of many values and branches respectively.

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The syntax for using Switch and case in Salesforce is:

switch on expression { when value1 { // when block 1 // code block 1 when value2 { // when block 2 // code block 2 when value3 { // when block 3 // code block 3 when else { // default block, optional // code block 4 }

Also, the when value can either be a single value, multiple value, or sObject types. For example:

When Value1, Value2 { //code block }

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