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Start your free trialJordan Crowell
787 PointsI am trying to return the number 1 if the first letter of a name is between A and M and return the 2 otherwise.
Does anyone mind pointing out what is wrong with my code in doing this?
public class ConferenceRegistrationAssistant {
public int getLineNumberFor(String lastName) {
int lineNumber = 0;
char letter = lastName.charAt(0);
if( letter <= 'A' && letter >= 'M' ){
lineNumber = 1;
}else {
lineNumber = 2;
}
return lineNumber;
}
}
public class Example {
public static void main(String[] args) {
/*
IMPORTANT: You can compare characters using <, >. <=, >= and == just like numbers
*/
if ('C' < 'D') {
System.out.println("C comes before D");
}
if ('B' > 'A') {
System.out.println("B comes after A");
}
if ('E' >= 'E') {
System.out.println("E is equal to or comes after E");
}
// This code is here for demonstration purposes only...
ConferenceRegistrationAssistant assistant = new ConferenceRegistrationAssistant();
/*
Remember that there are 2 lines.
Line #1 is for A-M
Line #2 is for N-Z
*/
int lineNumber = 0;
/*
This should set lineNumber to 2 because
The last name is Zimmerman which starts with a Z.
Therefore it is between N-Z
*/
lineNumber = assistant.getLineNumberFor("Zimmerman");
/*
This method call should set lineNumber to 1, because 'A' from "Anderson" is between A-M.
*/
lineNumber = assistant.getLineNumberFor("Anderson");
/*
Likewise Charlie Brown's 'B' is between 'A' and 'M', so lineNumber should be set to 1
*/
lineNumber = assistant.getLineNumberFor("Brown");
}
}
1 Answer
andren
28,558 PointsThere is a logical fault in your if statement, you check if the letter is less than or equal to A
and greather than or equal to M
. You should be checking for the opposite like this:
public int getLineNumberFor(String lastName) {
int lineNumber = 0;
char letter = lastName.charAt(0);
if( letter >= 'A' && letter <= 'M' ){
lineNumber = 1;
} else {
lineNumber = 2;
}
return lineNumber;
}
The letter should be greater than or equal to A
and lesser or equal to M
.