Thread: why i am getting this error

import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class RegexDemo2 {
public static boolean check(String str){



if(Pattern.matches("SPC[0-9]{3}(0[1-9]|1[0-2])(AM|PM)", str))
return true;
else
return false;

}

public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
System.out.println("Enter your name");
String name=sc.nextLine();
System.out.println("enter your id");
String id=sc.nextLine();
if(id.length()!=10){
System.out.println("Inavlid");
}
else if(!check(id)){
System.out.println("Invalid id");
}
else{
System.out.println("Hi "+name+" your seat number is "+Integer.parseInt(id.substring(3, 6))+" and the event starts at"+Integer.parseInt(id.substring(6,8))+Integer.pa rseInt(id.substring(8, 10)));
}




}}

output:-

vivek
enter your id
SPC01004PM
Exception in thread "main" java.lang.NumberFormatException: For input string: "PM"
at java.base/java.lang.NumberFormatException.forInputString(Num berFormatException.java:67)
at java.base/java.lang.Integer.parseInt(Integer.java:665)
at java.base/java.lang.Integer.parseInt(Integer.java:781)
at RegexDemo2.main(RegexDemo2.java:30)

java.lang.NumberFormatException: For input string: "PM"

"PM" is not numeric. parseInt requires numeric data.

Check that the substring method's indexes match the locations of the numeric parts of the input String.
Write down the input String on one line and write the index values from 0 to 9 below the String.
Then check that each of the substrings are for numeric data expected by the parseInt methods.

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[/code]

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