@@ -0,0 +1,242 @@
+package com.pengyifan.leetcode;%0A%0Aimport java.util.Collections;%0Aimport java.util.List;%0A%0A%0Apublic class GenerateParentheses %7B%0A  public List%3CString%3E generateParenthesis(int n) %7B%0A    if (n == 0) %7B%0A      return Collections.emptyList();%0A    %7D%0A  %7D%0A%7D%0A

generate parentheses