- public class Test {
- public static void main(String[] args){
- //String strs = "adsdsaadssdfdfggrrtrwhgjy";
- String strs = "sddsdfdffd";
- Map<String,String> map = new HashMap<String, String>();
- List<String> list = new ArrayList<String>();
- for(int i=0;i<strs.length();i++){
- String str = strs.substring(i, i+1);
- if(map.get(str)==null){
- map.put(str, str);
- list.add(str);
- }else{
- list.remove(str);
- }
- }
- if(list.size()>0){
- System.out.println(">>>>"+list.get(0));
- }else{
- System.out.println("没有满足的字符");
- }
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/0911201513972.html
来源: http://www.codesnippet.cn/detail/0911201513972.html