Tag: 输入

为什么我得到InputMismatchException？

到目前为止我有这个： public double checkValueWithin(int min, int max) { double num; Scanner reader = new Scanner(System.in); num = reader.nextDouble(); while (num max) { System.out.print(“Invalid. Re-enter number: “); num = reader.nextDouble(); } return num; } 和这个： public void askForMarks() { double marks[] = new double[student]; int index = 0; Scanner reader = new Scanner(System.in); while (index < […]