package java2;
public class met {
public static int output1;
public static void fn(String s) {
if (s.matches("[0-9]{3}[-]{1}[0-9]{3}[-]{1}[0-9]{4}"))
output1 = 1;
else
output1 = -1;
}
public static void main(String[]
args) {
fn("123-345-4325");
System.out.println(output1);
}
}