How do I make this program output my birthday month? My birthday is "April"

import java.util.Scanner;

public class BirthdayMonthTest {

public static void main(String[] args) {

String monthString;

Scanner scan = new Scanner(System.in);

System.out.println("Enter the month: ");

int month = scan.nextInt();

switch(month) {

case 1: monthString = "January";

break;

case 2: monthString = "February";

break;

case 3: monthString = "March";

break;

case 4: monthString = "April";

break;

case 5: monthString = "May";

break;

case 6: monthString = "June";

break;

case 7: monthString = "July";

break;

case 8: monthString = "August";

break;

case 9: monthString = "September";

break;

case 10: monthString = "October";

break;

case 11: monthString = "November";

break;

case 12: monthString = "December";

break;

default: monthString = "Invalid month";

break;

}

System.out.println(monthString);

}

}