exception

exception

  1. Create a program that takes user name as input from user, if user enters any invalid character ([email protected]#$%^&) in his name throw an user defined checked exception ââ?¬Å?InvalidCharcterFoundExceptionââ?¬Â? and creater a block of codes that will handle the exception.
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July 4, 2011 at 4:23 PM

import java.util.*;
import java.util.regex.*;
class ExceptionExample{

      public static void main(String[] args) throws Exception{
      boolean check=false;
      Scanner input=new Scanner(System.in);
      System.out.print("Enter string: ");
      String str=input.nextLine();
      Matcher m = Pattern.compile("[^\\s^\\w]").matcher(str);
      while(m.find()){
          check = true;
      }
      if(check==true){
      throw new Exception("InvalidCharacterFoundException!");
      }
      else{
      System.out.println("There is no invalid character in the string.");
    }
  }
}

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