Question

代码必须允许用户键入T，I，L的四个字母组合，并将其转换为单词TILT。但是，代码必须使用 - 和|打印出单词TILT。 - 表示字母T和I的顶部以及L. |的底部用于其他一切。需要有if和else语句和int行语句。

有没有人对如何实现这一点有任何建议？一切都有帮助！这是我到目前为止，它只运行到打印用户输入的内容但它不打印使用 - 和|。

import.java.util.Scanner
public class letters
{
private char letter1, letter2, letter3, letter4;
public void readIn()
{
    Scanner keyboard = new Scanner(System.in);
    System.out.println("Enter four letters that consist of any combination of T, I, or L");

    letter1 = keyboard.next().charAt(0);
    letter2 = keyboard.next().charAt(0);
    letter3 = keyboard.next().charAt(0);
    letter4 = keyboard.next().charAt(0);

    System.out.println("You entered the following:" + letter1 +letter2 + letter3 + letter4);


}
// This method tracks which line to print out at a given time
public void printOut()
 {
     for (int line = 0; line , 5; line++)
          drawLine(line);
     }

 public void drawLine(int Line)
   {
    if (line == 0)
   {
      if (letter1 == 'T' || letter1 == 'I')
          System.out.println("-----");
       else
      System.out.println("|");
    }   
       else if (line < 4)
   {
       if(letter1 == 'L')
      System.out.println("  |  ")
      }
         if (line == 4)

         {
           if(letter1 == 'T')
           System.out.println("  |  ");

          else
             System.out.println("-----");
          }
  }

Answer 1

此建议并不完全适合您的计划，但我相信您可以使其合适。我希望我不会为你编写代码来破坏它。

static String[] linesT = { "-----",
                           "  |  ",
                           "  |  ",
                           "  |  ",
                           "  |  " };

static String[] linesI = { "-----",
                           "  |  ",
                           "  |  ",
                           "  |  ",
                           "-----" };

static String[] linesL = { "|    ",
                           "|    ",
                           "|    ",
                           "|    ",
                           "-----" };

private static void printOut(String letters) {
    for (int line = 0; line < 5; line++) {
        for (int letter = 0; letter < letters.length(); letter++) {
            switch (letters.charAt(letter)) {
                case 'T':
                    System.out.print(linesT[line]);
                    break;
                case 'I':
                    System.out.print(linesI[line]);
                    break;
                case 'L':
                    System.out.print(linesL[line]);
                    break;

                default:
                    throw new IllegalArgumentException("Cannot print letter " + letters.charAt(letter));
            }
            System.out.print(' ');
        }
        System.out.println();
    }
}

当我使用参数printOut()调用"TILT"时，它会打印：

----- ----- |     ----- 
  |     |   |       |   
  |     |   |       |   
  |     |   |       |   
  |   ----- -----   |

如果需要，可以将字符串数组放入HashMap<Character, String[]>以便于查找，而不是切换/ case语句。

如果您有任何疑问，请在评论中提问。

如何用Java打印出来的字母？

1 个答案: