java - 识别 2 个字符串中的相似数字

Question

我正在尝试识别两个电话号码的相似号码。

这两个电话号码的相似号码是 1 3 4 5 6。

class yolo1{
     public static void main (String args[]){
           String telUDM="5143436111", telJean="4501234567";
           Integer i=0;
           for(i=0;i<telUDM.length();i++){
               for (j=0;j<telJean.length();j++){
                 if(telUDM.indexOf(i)== telJean.indexOf(j)){
                    System.out.println()/*I am stuck here and do not know what to do from here*/
}}}

Answer 1

使用集合试试这个:

String telUDM  = "5143436111";
String telJean = "4501234567";

Set<Character> tel1 = new HashSet<Character>();
for (char c : telUDM.toCharArray())
    tel1.add(c);

Set<Character> tel2 = new HashSet<Character>();
for (char c : telJean.toCharArray())
    tel2.add(c);

tel1.retainAll(tel2);
List<Character> answer = new ArrayList<Character>(tel1);
Collections.sort(answer);

System.out.println(answer);
=> [1, 3, 4, 5, 6]