java - 字符串交替字母

Question

我正在尝试编写一段代码，向用户请求两个字符串。我如何编写代码，以便通过交替两个字符串的字符来形成一个新的字符串。

感谢任何帮助

Answer 1

简单的“愚蠢”方法:)

 class StringMerge
 {
    public static String merge(String a, String b)
    {
     if (a == null || a.length() == 0){ return b; }
     else if(b == null || b.length() == 0){ return a; }
     else
     {
        StringBuffer merged = new StringBuffer();
        int aIndex = 0;
        int bIndex = 0;
        while(aIndex < a.length() && bIndex < b.length())
        {
             merged.append(a.charAt(aIndex));
             merged.append(b.charAt(bIndex));

             aIndex++;
             bIndex++;
        }
        while(aIndex < a.length())
        {
            merged.append(a.charAt(aIndex));
            aIndex++;
        }
        while(bIndex < b.length())
        {
            merged.append(b.charAt(bIndex));
            bIndex++;
        }

        return merged.toString();
     }
    }
 }