（RLE）如何将数字而不是字母放在前面

Question

我在显示输出时遇到问题。我想打印出来，以便它首先显示数字而不是字母。例如，当我输入“ WWWHJJJ”时，它会显示为“ W3HJ3”，而我希望它显示为“ 3WH3J”。

import java.util.Scanner;

public class CompressString {
   public static void main(String[] args) {

      Scanner sc = new Scanner(System.in);
      System.out.print("Enter string: ");
      String str = sc.nextLine();
      System.out.println("Entered input: " + str);


      String encode = "";

      char ch=0;
      int count=1;

      for (int i = 0; i < str.length(); i++)
      {
         if (ch == str.charAt(i))
         {
            count = count + 1;
         }
         else
         {
            encode = encode + ch;
            if(count != 1)
            {
               encode = encode + count;
            }

            ch = str.charAt(i);
            count = 1;
         }
      }
      encode = encode + ch;
      if(count != 1)
      {
         encode = encode + count;
      }
      System.out.println("Encoded: " + encode);
   }
}

Answer 1

这似乎很明显：

        encode = encode + ch;
        if(count != 1)
        {
           encode = encode + count;
        }

附加字符，然后加上计数。只需颠倒顺序：

        if(count != 1)
        {
           encode = encode + count;
        }
        encode = encode + ch;