Validate city and state : Regular Expressions « Development « Java Tutorial

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3. Regular Expressions

public class MainClass
{
   public static void main( String[] args )
   {
       System.out.println(validateCity("Street"));
       System.out.println(validateState("CA"));
   }
   // validate city
   public static boolean validateCity( String city )
   {
      return city.matches( "([a-zA-Z]+|[a-zA-Z]+\\s[a-zA-Z]+)" );
   } // end method validateCity

   // validate state
   public static boolean validateState( String state )
   {
      return state.matches( "([a-zA-Z]+|[a-zA-Z]+\\s[a-zA-Z]+)" ) ;
   } // end method validateState

   
}