Merge Strings Alternately
给两个string, 返回一个string, 要求交替字符.
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class Solution { public String mergeAlternately(String word1, String word2) { int n = word1.length(); int m = word2.length(); StringBuilder sb = new StringBuilder(); int i = 0; for(; i < Math.min(n, m); i++){ sb.append(word1.charAt(i)); sb.append(word2.charAt(i)); } while(i < n) { sb.append(word1.charAt(i++)); } while(i < m) { sb.append(word2.charAt(i++)); } return sb.toString(); } } |