《剑指Offer》之替换空格

 1 public class Solution {
 2     public String replaceSpace(StringBuffer str){
 3         String strTemp = "";
 4         for(int i = 0; i < str.length(); i++){
 5             if(str.charAt(i) == ‘ ‘){
 6                 strTemp += "%20";
 7                 continue;
 8             }
 9             strTemp += str.charAt(i);
10         }
11         
12         return strTemp;
13     }
14     
15     public static void main(String[] args) {
16         Solution solutionBlank = new Solution();
17         StringBuffer str = new StringBuffer("We Are Happy");
18         System.out.println(solutionBlank.replaceSpace(str));
19     }
20 }