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想象一下,掃描儀通過任何字符串輸入,如「11 22 a b 22」,該方法應該計算所有數字的總和(例如55)。我在這裏編寫了一些東西,但我無法跳過字符串。任何人都可以幫助我嗎?從掃描儀只讀數
System.out.println("Please enter any words and/or numbers: ");
String kbdInput = kbd.nextLine();
Scanner input = new Scanner(kbdInput);
addNumbers(input);
public static void addNumbers(Scanner input) {
double sum = 0;
while (input.hasNextDouble()) {
double nextNumber = input.nextDouble();
sum += nextNumber;
}
System.out.println("The total sum of the numbers from the file is " + sum);
}
這與http://stackoverflow.com/questions/2367381/extract-numbers-from-a-string-java非常相似 - 該解決方案可能適合您 – 2015-02-05 21:54:42