LeetCode:一个字符串的反转（反转每个单词）

Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.

Example 1:

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Input: "Let's take LeetCode contest"
Output: "s'teL ekat edoCteeL tsetnoc"

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Note: In the string, each word is separated by single space and there will not be any extra space in the string.

class Solution {
    public String reverseWords(String s) {
        StringBuffer sb=new StringBuffer(s);
        StringBuffer newSb=new StringBuffer();
        String [] strs=sb.reverse().toString().split(" +");

        for(int i=strs.length-1;i>=0;i--){
            newSb.append(strs[i]+" ");
         }
         return newSb.toString().trim();
        
    }
}