到目前爲止,我有這樣的: public double checkValueWithin(int min, int max) {
double num;
Scanner reader = new Scanner(System.in);
num = reader.nextDouble();
while (num < min || num > max)
我有以下的Java代碼: Scanner input = new Scanner(System.in);
try {
System.out.println("Enter your name>>");
String name = input.next();
System.out.println("Enter your year of birth>>");
我目前正試圖從我的硬盤讀取文件。文件名是「Sample.txt」,下面是我的代碼。我能夠得到它的編譯和運行,但收到此錯誤: Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Scanner.java:909)
at java.util.Scanner.next(