java - Java中在一行中间打印一个单词

Question

我打印了一个等边三角形，并在某一行的中间我想打印一个单词(作为输入)。我的代码如下:

for (int rows=1; rows <= getHeight(); rows++)
    {
        char charToPrint = '*';
        if(rows == getRowNum()){
            for(int i=0;i<getTextLabel().length();i++){
                 charToPrint = getTextLabel().charAt(i);
            }
        }
        for (int spaces=1; spaces <= number_of_stars; spaces++)
        {
            System.out.print(" ");
        }
        for (int star=1; star <= rows; star++)
        {
            System.out.print(charToPrint);
            System.out.print(" ");
        }
        System.out.println("");
        number_of_stars = number_of_stars - 1;
    }

输出:

          * 
         * * 
        * * * 
       * * * * 
      * * * * * 
     * * * * * * 
    A A A A A A A 
   * * * * * * * * 
  * * * * * * * * * 
 * * * * * * * * * * 

但我希望输出是这样的:

          * 
         * * 
        * * * 
       * * * * 
      * * * * * 
     * * * * * * 
    * L R E Z A * 
   * * * * * * * * 
  * * * * * * * * * 
 * * * * * * * * * * 

Answer 1

您可以尝试以下代码，因为它似乎适用于输入LREZA:

 public static void main(String[] args) {
    int userRowNumber = 15;
    int height = 20;
    int number_of_stars = height;
    String charToPrint;
    String inputWord = "LREZA";
    int inputSize = inputWord.length();
    if(userRowNumber < (inputSize*2) ) {
        System.out.println("Not enough space in row to display input text");
        return;
    }
    for (int rows=1; rows <= height; rows++)
    {
        charToPrint = "*";
        if(rows == userRowNumber)
        {
            int startWordFrom = (userRowNumber - inputWord.length())/2;
            printSpace(number_of_stars);
            for (int spaces=0; spaces <rows; spaces++)
            {
                if(spaces >= startWordFrom && spaces <(inputSize*2) ) {
                    System.out.print(inputWord.charAt(spaces-startWordFrom));
                    System.out.print(" ");

                } else {
                    System.out.print("*");
                    System.out.print(" ");
                }
            }
            System.out.println("");
            number_of_stars--;
            rows++;
        }
        printSpace(number_of_stars);
        printCharacter(charToPrint,rows);
        System.out.println("");
        number_of_stars = number_of_stars - 1;
     }
   }
    public static void printSpace(int number_of_stars) {
        for (int spaces=1; spaces <= number_of_stars; spaces++)
        {
            System.out.print(" ");
        }
    }
    public static void printCharacter(String charToPrint, int numberOfTimes) {
        for (int star=1; star <= numberOfTimes; star++)
        {
            System.out.print(charToPrint);
            System.out.print(" ");
        }
    }

处理输入字符串时需要注意一些要点。我们需要尝试集中输入，并且还需要在每个输入字母后面放置一个空格。我从这个程序中得到的输出是:

                    * 
                   * * 
                  * * * 
                 * * * * 
                * * * * * 
               * * * * * * 
              * * * * * * * 
             * * * * * * * * 
            * * * * * * * * * 
           * * * * * * * * * * 
          * * * * * * * * * * * 
         * * * * * * * * * * * * 
        * * * * * * * * * * * * * 
       * * * * * * * * * * * * * * 
      * * * * * L R E Z A * * * * * 
     * * * * * * * * * * * * * * * * 
    * * * * * * * * * * * * * * * * * 
   * * * * * * * * * * * * * * * * * * 
  * * * * * * * * * * * * * * * * * * * 
 * * * * * * * * * * * * * * * * * * * * 

这是我所期望的。