public class StringSwitchDemo {

    public static void main(String[] args) {

        String month = "August";
        int monthNumber;

        switch (month) {
            case "January":
                monthNumber = 1;
                break;
            case "February":
                monthNumber = 2;
                break;
            case "March":
                monthNumber = 3;
                break;
            case "April":
                monthNumber = 4;
                break;
            case "May":
                monthNumber = 5;
                break;
            case "June":
                monthNumber = 6;
                break;
            case "July":
                monthNumber = 7;
                break;
            case "August":
                monthNumber = 8;
                break;
            case "September":
                monthNumber = 9;
                break;
            case "October":
                monthNumber = 10;
                break;
            case "November":
                monthNumber = 11;
                break;
            case "December":
                monthNumber = 12;
                break;
            default: 
                monthNumber = 0;
                break;
        }

        System.out.println("Month number: "+monthNumber);
    }
}