[LeetCode-Easy]344. Reverse String-逆置字串

weixin_34138377發表於2016-08-21

題目:

Write a function that takes a string as input and returns the string reversed.

Example:Given s = "hello", return "olleh".

思路:

超級簡單的一道基礎題,只需要利用StringBuffer就可以直接30秒解決問題。

程式碼:

public class ReverseStringTest {
public String reverseString(String s) {
    StringBuffer sb = new StringBuffer(s);
    s = sb.reverse().toString();
    return s;
  }

public static void main(String[] args) {
    ReverseStringTest rst = new ReverseStringTest();
    System.out.println(rst.reverseString("hello"));
}
}

相關文章