Avoid switch with very few branches

Docs > Code Analysis > Static Analysis Rules > Avoid switch with very few branches

Cette page n'est pas encore disponible en français, sa traduction est en cours.
Si vous avez des questions ou des retours sur notre projet de traduction actuel, n'hésitez pas à nous contacter.

Metadata

ID: java-best-practices/switch-few-branches

Language: Java

Severity: Warning

Category: Best Practices

Description

switch statements are used to trigger different block of code based on different values. Developers should avoid switch statements with less than 3 branches. If a switch statement has less than 3 branches, we should rather use a if statement.

Arguments

max-cases: Max number of cases allowed

Non-Compliant Code Examples

class Main {
    public static void main(String[] args) {
        switch (condition) {
            case value1:
                break;
        }

        switch (condition) {
            case value1:
                break;
            case value2:
                break;
            default:
                break;
        }
    }
}

Compliant Code Examples

class Main {
    public static void main(String[] args) {
        switch (condition) {
            case value1:
                break;
            case value2:
                break;
            default:
                break;
        }

        switch (condition) {
            case value1: // comments are supported
            case value2:
                break;
            default:
                break;
        }
    }
}