java的Scanner对象获取一个很长的数组

Question

我在做去年网易的笔试题，http://www.nowcoder.com/test/970447/summary
里面的第一题，小易大怪兽的那道，我用scanner对象来获取输入，他的测试用例是个3000多的数组，但是每次scanner获取到1902个元素之后就阻塞了，不知道是怎么回事。
代码如下：

import java.util.Scanner;

/**
 * Created by kbyyd on 2016/3/21.
 */
public class main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        XiaoYi xiaoyi = new XiaoYi(scanner.nextInt());
        for (int i = 0; i < n; i++) {
            xiaoyi.addAbility(scanner.nextInt());
        }
        scanner.close();
        System.out.println(xiaoyi.getAbility());
    }
}

class XiaoYi {
    private int ability;

    XiaoYi(int ability) {
        this.ability = ability;
    }

    public void addAbility(int b) {
        if (ability >= b) ability += b;
        else ability += getDivisor(b);
    }

    public int getAbility() {
        return this.ability;
    }

    private int getDivisor(int b) {
        if (b < ability) return 0;
        int a = ability;
        int s = -1;
        do {
            s = b % a;
            b = a;
            a = s;
        } while (s != 0);
        return b;
    }
}

Answer 1

输入有多组数据，你的代码只处理了一组数据就退出了。

加一个while (scanner.hasNext())的判断就好了。

import java.util.Scanner;

/**
 * Created by kbyyd on 2016/3/21.
 */
public class Main {      // main -> Main
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {  // add while loop
            int n = scanner.nextInt();
            XiaoYi xiaoyi = new XiaoYi(scanner.nextInt());
            for (int i = 0; i < n; i++) {
                xiaoyi.addAbility(scanner.nextInt());
            }
            System.out.println(xiaoyi.getAbility());
        }
        scanner.close();
    }
}

class XiaoYi {
    private int ability;

    XiaoYi(int ability) {
        this.ability = ability;
    }

    public void addAbility(int b) {
        if (ability >= b) ability += b;
        else ability += getDivisor(b);
    }

    public int getAbility() {
        return this.ability;
    }

    private int getDivisor(int b) {
        if (b < ability) return 0;
        int a = ability;
        int s = -1;
        do {
            s = b % a;
            b = a;
            a = s;
        } while (s != 0);
        return b;
    }
}