将一个字符串中的每个空格替换成“%20”
替换空格
http://www.nowcoder.com/questionTerminal/4060ac7e3e404ad1a894ef3e17650423
public String replaceSpace(StringBuffer str) { char[] chara = str.toString().toCharArray(); String result =""; for (int i=0 ;i<str.length();i++) { String tmp = String.valueOf(chara[i]); if(tmp.equals(" ")){ result+="%20"; }else { result +=tmp; } } return result; }
