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Java Java Objects (Retired) Creating the MVP Comparing Characters

Kevin Khlom
Kevin Khlom
14,369 Points
Posted by Kevin Khlom
Kevin Khlom
14,369 Points

Stuck on: Java Objects - Conference Registration Assistant Class challenge

I've actually done this a couple of ways and received errors every time. This was my last try with no errors according to the "preview" but the error I'm getting is "I entered Anderson and it does not send me to line 1". I'm kind of lost right now. I even tried:

if(lastName.charAt(0) <= 'a' && lastName.charAt(0) >= 'm'{ line = 1; } else if(lastName.charAt(0) > 'm'{ line = 2; } else { line = 0; }

ConferenceRegistrationAssistant.java 
public class ConferenceRegistrationAssistant {

  public int getLineFor(String lastName) {
    /* If the last name is between A thru M send them to line 1
       Otherwise send them to line 2 */
    int line = 0;
    if(lastName.charAt(0) >= 'a' && lastName.charAt(0) <= 'm'){
      line = 1;
    } else {
      line = 2;
    }
    return line;
  }

}

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi Kevin,

First up, we're dealing with capital letters here; I'm not sure if that makes a difference but it would make sense if it does.

Secondly, there's an assumption that the names are entered correctly. Therefore, testing whether a letter is >= 'A' achieves nothing; all letters are >= 'A'!

My code just tests if the initial letter is less than or equal to 'M' and sends the person to the appropriate line.

I hope that makes sense!

Steve. 

public class ConferenceRegistrationAssistant {

  public int getLineFor(String lastName) {
    /* If the last name is between A thru M send them to line 1
       Otherwise send them to line 2 */
    int line = 0;
    if(lastName.charAt(0) <= 'M') {
      line = 1;
    } else {
      line = 2; 
    }
    return line;
  }
}
Kevin Khlom
Kevin Khlom
14,369 Points
Kevin Khlom
Kevin Khlom
14,369 Points

That helps out a lot. Thank you so much for your help. I was definitely overthinking this.