I am making a program where you enter in the student's grade, and it counts who passes and fails, then Z is supposed to mean the program should end. But whenever I type in "Z", it just prints out:
<Z is NOT an acceptable grade.>
So something is preventing the while loop from realizing I am trying to move on. Any ideas? Full code is below.
import java.lang.reflect.Array;
import java.util.Scanner;
import java.util.Arrays;
import java.util.List;
public class GCDProgram {
public static void main(String args[]){
Scanner sc = new Scanner(System.in);
int numberOfGrades = 1;
System.out.println("Enter grade #" + numberOfGrades + ":");
String inputLetter = sc.nextLine();
int passed = 0;
int failed = 0;
String[] letterGrade = {"A", "B", "C", "D", "F"};
boolean result = Arrays.stream(letterGrade).anyMatch(inputLetter::equals);
while (inputLetter != "Z"){
if (result) {
numberOfGrades++;
System.out.println("Enter grade #" + numberOfGrades + ":");
inputLetter = sc.nextLine();
result = Arrays.stream(letterGrade).anyMatch(inputLetter::equals);
if ((inputLetter == "D") || (inputLetter == "F")){
failed++;
}else{
passed++;
}
}else{
System.out.println("<" + inputLetter + " is NOT an acceptable grade.>");
System.out.println("Enter grade #" + numberOfGrades + ":");
inputLetter = sc.nextLine();
result = Arrays.stream(letterGrade).anyMatch(inputLetter::equals);
}
}
System.out.format("%-20s %3s", numberOfGrades + " students total", "");
System.out.format("%-20s %3s", passed + " students passed:", ((passed / numberOfGrades) * 100) + "%");
System.out.format("%-20s %3s", failed + " students failed:", ((failed / numberOfGrades) * 100) + "%");
}
}
