checking last 4 character of string java
Get last 4 characters
String input = "123456789";     //input string
String lastFourDigits = "";     //substring containing last 4 characters
 
if (input.length() > 4) 
{
    lastFourDigits = input.substring(input.length() - 4);
} 
else
{
    lastFourDigits = input;
}
 
System.out.println(lastFourDigits);
