Java Scanner类读取字符串 [英] Java Scanner class reading strings

问题描述

我有以下代码：

        int nnames;
    String names[];

    System.out.print("How many names are you going to save: ");
    Scanner in = new Scanner(System.in);
    nnames = in.nextInt();
    names = new String[nnames];

    for (int i = 0; i < names.length; i++){
        System.out.print("Type a name: ");
        names[i] = in.next();
    }

    System.out.println(names[0]);

当我运行此代码时，扫描仪只会拾取名字而不是姓氏。它有时会跳过一行，当尝试输入一个名称，它会显示，如果我把名称留空，并跳到下一个名字。我不知道是什么原因造成的。

When I run this code, the scanner will only pick up the first name and not the last name. And it will sometimes skip a line when trying to enter a name, it will show up as if I had left the name blank and skip to the next name. I don't know what's causing this.

我希望有人能帮助我！

试试in.nextLine（）;它修复了完整的名称，但它仍然保持一行，这里是一个输出的示例：

I have tried in.nextLine(); it fixes the complete names but it still keeps a line, here is an example of the output:

How many names are you going to save:  3
Type a name: Type a name: John Doe
Type a name: John Lennon

推荐答案

而不是：

in.next();

使用：

in.nextLine();

nextLine（）读取字符找到一个新的字符'\\\
'

nextLine() reads the characters until it finds a new line character '\n'

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