Assuming that month is int and contains the month number, following piece of code will print the name of the month.
switch (month)
{
case 1:
System.out.print("January");
break;
case 2:
System.out.print("February");
break;
case 3:
System.out.print("March");
break;
case 4:
System.out.print("April");
break;
case 5:
System.out.print("May");
break;
case 6:
System.out.print("June");
break;
case 7:
System.out.print("July");
break;
case 8:
System.out.print("August");
break;
case 9:
System.out.print("September");
break;
case 10:
System.out.print("October");
break;
case 11:
System.out.print("November");
break;
case 12:
System.out.print("December");
}