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doc chatman
Courses Plus Student 602 Points/ConferenceRegistrationAssistant.java:13: error: unreachable statement char guest = lastName.charAt(0); ^
Can anyone help?
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;
return line;
char guest = lastName.charAt(0);
if(guest > 'A' && guest < 'M') {
line =1;
return line;
} else {
line =2;
return line;
}
}
}
2 Answers
William Li
Courses Plus Student 26,868 PointsHi, doc chatman , I was asked to answer this question, so I'll try my best.
there're couple problems with the code
- your code has 3
returnstatement, the last 2 look okay to me, there problem is the firstreturn line;. You have to remember that return statement will terminate the function execution. That means as soon as the compiler hits the firstreturnstatement, it'll exit the function and whatever code you have after the firstreturnstatement don't get executed. - Like George said, you also need to check for whether first char of
lastNameequals to A & M.
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;
// deleted the first return statement
char guest = lastName.charAt(0);
if(guest >= 'A' && guest <= 'M') { // equality check for 'A' & 'M'
line =1;
return line;
} else {
line =2;
return line;
}
}
}
One last thing, I'm don't know if you've learned about ternary operator in Java during the course lecture; if you do, the code can be simplified a bit.
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 */
return (lastName.charAt(0)>='A' && lastName.charAt(0)<='M') ? 1 : 2;
}
}
Cheers.
doc chatman
Courses Plus Student 602 PointsThanks!
George Pirchalaishvili
3,747 PointsThere are actually couple of things :)
- You have a return statement before you char guest = lastName.charAt(0); . This stops your method without going further
- In your if statement you have (guest>'A'), but what if guest = 'A'? :)
Hope this helps ;)
doc chatman
Courses Plus Student 602 Pointsdoc chatman
Courses Plus Student 602 PointsThanks!