public class DepartmentEmployees {
 
    public static void main() {
        // Create a map with department names as keys and lists of employee names as values
        Map<String, List<String>> departmentEmployeesMap = new Map<String, List<String>>();
 
        // Add sample data to the map
        departmentEmployeesMap.put('Sales', new List<String>{'Alice', 'Bob', 'Charlie'});
        departmentEmployeesMap.put('Engineering', new List<String>{'Dave', 'Eve', 'Frank'});
        departmentEmployeesMap.put('Marketing', new List<String>{'Grace', 'Heidi', 'Ivan'});
 
        // Print the map
        for (String department : departmentEmployeesMap.keySet()) {
            System.debug('Department: ' + department);
            System.debug('Employees: ' + departmentEmployeesMap.get(department));
        }
    }
}
 

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