java - 如何分割我的用户字符串并在给定分割大小的情况下将它们排列在列和行中？

Question

我几乎完成了这项 Activity ，我只需要根据用户的分割大小将它们排列在列和行中，并且我坚持只打印字符串本身的输出。这是我到目前为止的代码。

    Scanner lagoScan = new Scanner(System.in);

    System.out.println("Enter String:");
    String letters = lagoScan.next();



    final int numInLetters = letters.length(); // converted string to number length

    System.out.println("Enter Split Size:");
    int splitSize = lagoScan.nextInt();




    if (numInLetters % splitSize == 0) {

    System.out.println("The Given String is: "+letters);
    System.out.println("The Split String are:");

    //My Split here

    String []in_array;

    in_array = letters.split(""); //Note this there is no delimiter 
    for(int k=0; k < in_array.length; k++){


       System.out.print(" "+in_array[k]);

    }


    // Split ENdss
    }

    else {
    System.out.println("Given input is not divisible by input size.");
    }

}

这是我试图遵循的输出

Answer 1

这是一个可能的解决方案:

for (int i = 1; i <= inArray.length; i++) {
  // print the current char.
  System.out.print(inArray[i - 1]);

  // if it's over the split size then print a line break
  // for split size = 3
  // i = 1 - print the char, i = 2, print the char, i = 3, print the char + line break
  if (i % splitSize == 0) {
   System.out.println();
  }

}