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7,346 Pointsnot able to solve this problem...
I have used charAt(0) method to scan first letter of lastName but still Bummer occurred. Please help where i'm doing mistake.
import java.util.Scanner;
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) {
int lineNumber = 0;
/*
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
*/
Scanner scanner = new Scanner(System.in);
System.out.print("Enter A Letter: ");
String guessInput = scanner.nextLine();
char guess = guessInput.charAt(0);
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
Ivan Bagaric
Courses Plus Student 12,356 PointsFirst you save your char in variable type char then just check with if statement, like this: you don't need scanner since you passing lastName as parameter in function, so use it ;)
public int getLineNumberFor(String lastName) {
int lineNumber = 0;
char letter = lastName.charAt(0);
if (letter >= 'A' && letter <= 'M') {
lineNumber = 1;
} else if (letter >= 'N' && letter <= 'Z') {
lineNumber = 2;
}
return lineNumber;
}