java - 将字符串转换为另一个字符串

Question

我有:

String s = "NyffsGeyylB";

我需要将其更改为:

String result = "N-Yy-Fff-Ffff-Sssss-Gggggg-Eeeeeee-Yyyyyyyy-Yyyyyyyyy-Llllllllll-Bbbbbbbbbbb";

这是迄今为止我的代码:

// I use HashMap to count elements
Map<Integer, String> map = new HashMap<>();
for (int i = 0; i < s.length(); i++) {
    map.put(i + 1, String.valueOf(s.charAt(i)));
}

// Then I convert it to list
for (Map.Entry<Integer, String> m : map.entrySet()) {
    for (int i = 0; i < m.getKey(); i++) {
        tempRes.add(m.getValue());
    }
}

// Then I capitalize first letters and add dash
ListIterator<String> iterator = tempRes.listIterator();
while (iterator.hasNext()) {
    iterator.set(iterator.next().toLowerCase());
}

result.add(tempRes.get(0).toUpperCase());
for (int i = 1; i < tempRes.size(); i++) {
    if (tempRes.get(i).equalsIgnoreCase(tempRes.get(i - 1))) {
        result.add(tempRes.get(i));
    } else {
        result.add("-");
        result.add(tempRes.get(i).toUpperCase());
    }
}

// And finally I add elements from result list to string:
for (int i = 0; i < result.size(); i++) {
    finalResult += result.get(i);
}

结果，我得到:

"N-Yy-Fffffff-Sssss-Gggggg-Eeeeeee-Yyyyyyyyyyyyyyyyy-Llllllllll-Bbbbbbbbbbb"

但我需要得到:

"N-Yy-Fff-Ffff-Sssss-Gggggg-Eeeeeee-Yyyyyyyy-Yyyyyyyyy-Llllllllll-Bbbbbbbbbbb";

我怎样才能实现它？

Answer 1

for ( int i = 0 ; i < input.length() ; i++){
      System.out.print(Character.toUpperCase(input.charAt(i)));
      for (int j = 0; j < i; j++){
          System.out.print(Character.toLowerCase(input.charAt(i)));
      }
      if ( i < input.length() - 1)
        System.out.print("-");
  }