java - 如何将每个单词另起一行？

Question

如何将输入字符串的每个单词设置为新行并将输出放置在 ASCII 框中？

我有以下代码:

import java.util.Scanner;


public class labSix {
public static void main(String[] args) {
    Scanner in = new Scanner(System.in);

    System.out.print("Enter a line of text: ");
    String line = in.nextLine();

    printBox(line);

}

// Returns the length of the longest token in the line. 
private static int getMaxLength(String... strings) {
    int len = Integer.MIN_VALUE;
    for (String str : strings) {
        len = Math.max(str.length(), len);
    }
    return len;
}

// Pad the strings with spaces.
private static String padString(String str, int len) {
    StringBuilder sb = new StringBuilder(str);
    return sb.append(fill(' ', len - str.length())).toString();
}

// Fill the string to the amount determined in padString.
private static String fill(char ch, int len) {
    StringBuilder sb = new StringBuilder(len);
    for (int i = 0; i < len; i++) {
        sb.append(ch);
    }
    return sb.toString();
}


// Print the box
public static void printBox(String... strings) {
    int maxBoxWidth = getMaxLength(strings);
    String line = "+" + fill('-', maxBoxWidth + 2) + "+";
    System.out.println(line);
    for (String str : strings) {
        System.out.printf("| %s |%n", padString(str, maxBoxWidth));
    }
    System.out.println(line);
}


}

如果我尝试分割字符串并将“”​​替换为“\n”，那么只有一个“|”添加到第一行和最后一行。

关于如何实现这一目标有什么建议吗？

Answer 1

将您的调用更改为 printBox。您当前传递一个名为 line 的 String，而是通过在空间上分割行来传递一个 String 数组。就像，

printBox(line.split(" "));

经过这样的更改，当我输入“Hello world Goodbye world”时，我得到了

+---------+
| Hello   |
| world   |
| Goodbye |
| world   |
+---------+