本文主要是介绍leetcode344: Reverse String,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
Write a function that takes a string as input and returns the string reversed.
Example:
Given s = "hello", return "olleh".
直接用StringBuffer中的reserve方法
public String reverseString(String s) {StringBuffer sb = new StringBuffer(s);return sb.reverse().toString();}
或者反向遍历一遍String
public String reverseString(String s) {String re = "";for (int i = s.length() - 1; i >= 0; i--)re = re + s.charAt(i);return re;}
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