题目描述
牛客最近来了一个新员工Fish,每天早晨总是会拿着一本英文杂志,写些句子在本子上。同事Cat对Fish写的内容颇感兴趣,有一天他向Fish借来翻看,但却读不懂它的意思。例如,“student. a am I”。后来才意识到,这家伙原来把句子单词的顺序翻转了,正确的句子应该是“I am a student.”。Cat对一一的翻转这些单词顺序可不在行,你能帮助他么?
public class Solution {
public String ReverseSentence(String str) {
if(str == null || str.length() <= 1)
return str;
String[] s = str.split(" ");
if(s == null || s.length == 0)
return str;
String sentence = new String();
for(int i = s.length - 1; i >=1; i --) {
sentence += s[i];
sentence += " ";
}
sentence += s[0];
return sentence;
}
}