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Start your free trialBorislav Milev
1,218 PointsFix the getLineNumberFor method to return a 1 if the first character of lastName is between A and M or else return 2 if
./ConferenceRegistrationAssistant.java:10: error: cannot find symbol char ch = charAt.lastName(0); ^ symbol: variable charAt location: class ConferenceRegistrationAssistant Note: JavaTester.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 1 error
public class ConferenceRegistrationAssistant {
/**
* Assists in guiding people to the proper line based on their last name.
*
* @param lastName The person's last name
* @return The line number based on the first letter of lastName
*/
public int getLineNumberFor(String lastName) {
char ch = charAt.lastName(0);
int lineNumber;
if (ch >= 'A' && ch <= 'M') {
lineNumber = 1;
} else {
lineNumber = 2;
}
/*
lineNumber should be set based on the first character of the person's last name
Line 1 - A thru M
Line 2 - N thru Z
*/
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
Umesh Ravji
42,386 PointsHi Borislav, the charAt()
method is called on the string that you want the character from.
char ch = lastName.charAt(0);
Borislav Milev
1,218 PointsBorislav Milev
1,218 PointsOMG :D, thank you!