Given an absolute path for a file (Unix-style), simplify it.
For example,
path = "/home/",
=> "/home"
path = "/a/./b/../../c/",
=> "/c"
"/../"?"/".‘/‘ together, such
as "/home//foo/"."/home/foo".|
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public class Solution { public
String simplifyPath(String path) { StringBuffer pathaccu= new
StringBuffer(); if(path == null
|| path.length() == 0) return
pathaccu.toString(); String[] splits = path.split("/"); Stack<String> st = new
Stack<String>(); for(int
i = 0; i < splits.length; ++i){ if(splits[i].equals("..")){ if(!st.empty()) st.pop(); } else
if(splits[i].equals(".") || splits[i].equals("")){ //do nothing } else st.push(splits[i]); } if(st.empty()) pathaccu.append("/"); else{ while(!st.empty()) pathaccu.insert(0, "/"+st.pop()); //pathaccu.insert(0,"/"); } return
pathaccu.toString(); }} |
leetcode--Simplify Path,布布扣,bubuko.com
原文：http://www.cnblogs.com/averillzheng/p/3612811.html