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Java Java Objects (Retired) Creating the MVP Comparing Characters

TJ von Stein
TJ von Stein
1,188 Points
Posted by TJ von Stein
TJ von Stein
1,188 Points

Help with getForLine method

I cant get the first letter of the last name to compare if it starts with A-M

ConferenceRegistrationAssistant.java 
public class ConferenceRegistrationAssistant {
  private String mLastName;
  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 */
      char name = lastName.indexOf(0);
    if (name=='A'||name=='B'||name=='C') {
      line = 1;
    return line;
    } else {
    line = 2;
    return line;
    }
  }
}
TJ von Stein
TJ von Stein
1,188 Points
TJ von Stein
TJ von Stein
1,188 Points

any help would be greatly appreciated, thank you

David Axelrod
David Axelrod
36,073 Points
David Axelrod
David Axelrod
36,073 Points

Giving it a go right now! Be back in a bit

1 Answer

David Axelrod
David Axelrod
36,073 Points
David Axelrod
David Axelrod
36,073 Points

Here we go!

2 things!

Since we want a char value, we have to use the charAt() method rather than the indexOf() method

now that we have the char, we can use it to compare its value to 'M'. Yes you could chain together a lot of or statements but, going with the mantra of not repeating ourselves, using if(firstLetter < 'M'){...} works too!

Hope this helps!

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 = 1;
    char firstLetter = lastName.charAt(0);
    if(firstLetter < 'M'){
      line = 1;    
    } else {
      line = 2;
    }

    return line;
  }

}