如何阻止運行條件循環。例如,如果我寫的if
聲明接受值從0到100怎麼辦,如果用戶輸入一個數小於0或超過100如何阻止在Java中運行循環
import java.util.Scanner;
public class TestScores {
public static void main(String[]args) {
int numTests = 0;
double[] grade = new double[numTests];
double totGrades = 0;
double average;
Scanner keyboard = new Scanner(System.in);
System.out.print("How many tests do you have? ");
numTests = keyboard.nextInt();
grade = new double[(int) numTests];
for (int index = 0; index < grade.length; index++) {
System.out.print("Enter grade for Test " + (index + 1) + ": ");
grade[index] = keyboard.nextDouble();
if (grade[index] < 0 || grade[index]> 100) {
try {
throw new InvalidTestScore();
}
catch (InvalidTestScore e) {
e.printStackTrace();
}
}
}
for (int index = 0; index < grade.length; index++) {
totGrades += grade[index];
}
average = totGrades/grade.length;
System.out.print("The average is: " + average);
}
}