标签：style blog class code java color
没考虑到的情况有：input: [, expected: false; 语法上也犯了错误： 我定义的stack的泛型为char，泛型不能为primitive datatype,
Primitive types such as char cannot be used as type
parameters in Java. You need to use the wrapper type:
Stack<Character>
stack =newStack<Character>(); 建议有时间再多读读泛型部分
1 public class Solution { 2 public boolean isValid(String s) { 3 if (s == "") return true; 4 Stack<Character> mystack = new Stack<Character>(); 5 int length = s.length(); 6 for (int i=0; i<length; i++){ 7 char c = s.charAt(i); 8 if (c==‘(‘ || c==‘{‘ || c==‘[‘){ 9 mystack.push(c); 10 } 11 if (c==‘)‘ || c==‘}‘ || c==‘]‘){ 12 if (mystack.empty()) return false; 13 char p = mystack.pop(); 14 if (p==‘(‘ && c==‘)‘) continue; 15 if (p==‘{‘ && c==‘}‘) continue; 16 if (p==‘[‘ && c==‘]‘) continue; 17 else return false; 18 } 19 } 20 if (mystack.empty()) return true; 21 else return false; 22 } 23 }
Leetcode: Valid Parentheses,布布扣,bubuko.com
标签：style blog class code java color
原文地址：http://www.cnblogs.com/EdwardLiu/p/3718032.html
