通过扫描仪计数字符串

Question

我创建了一个简单的扫描器，用于计算中的字符串数。txt文件。每个字符串位于下一行。它算错了，每次它给我数字297，甚至有超过20000个字符串。这个txt文件是由我编写的另一个程序创建的，它从网站获取链接，并使用FileWriter和BufferedWriter将其保存到。txt文件。可能有什么问题？

public class Counter {

public static void main(String[] args) throws FileNotFoundException {

    Scanner scanner = new Scanner(new File("/Users/myName/Desktop/test.txt"));
    String string = scanner.next();
    int count = 0;

    while (scanner.hasNextLine()) {
        string = scanner.next();
        count++;
        System.out.println(count);
    }           
 }
}

编辑：字符串示例：

yahoo.com
google.com
etc.

Answer 1

尝试以下操作：

public class Counter {

public static void main(String[] args) throws FileNotFoundException {

    Scanner scanner = new Scanner(new File("/Users/myName/Desktop/test.txt"));
    int count = 0;

    while (scanner.hasNextLine()) {
        scanner.nextLine();
        count++;
        System.out.println(count);
    }           
 }
}

你得到了什么答案？

Answer 2

试试这个，使用nextLine和解析可以更准确

public class Counter {

    public static void main(String[] args) throws FileNotFoundException {

        Scanner scanner = new Scanner(new File("/Users/myName/Desktop/test.txt"));
        String string = scanner.next();
        int count = 0;

        while (scanner.hasNextLine()) {
            string = scanner.nextLine();
            count += string.split(" ").length;
            System.out.println(count);
        }           
     }
    }

Answer 3

尝试以下操作以测试最后一个字符串是什么：

public class Counter {

    public static void main(String[] args) throws FileNotFoundException {

        Scanner scanner = new Scanner(new File("/Users/myName/Desktop/test.txt"));
        int count = 0;

        String string;
        while (scanner.hasNextLine()) {
            string = scanner.nextLine();
            count++;
        }
        System.out.println(string);
        System.out.println(count);  
   }
}