输入非整数时，对的
Scanner调用
nextInt()不会消耗非整数。您需要致电
keyboard.next()（或
keyboard.nextLine()）使用它。就像是，
try { dim = keyboard.nextInt();} catch (Exception e) { System.out.printf("%s is not an integer.%n", keyboard.next()); err = 1;}
输入非整数时，对的
Scanner调用
nextInt()不会消耗非整数。您需要致电
keyboard.next()（或
keyboard.nextLine()）使用它。就像是，
try { dim = keyboard.nextInt();} catch (Exception e) { System.out.printf("%s is not an integer.%n", keyboard.next()); err = 1;}名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
