contains method of String is not working properly [closed]

Answer 1

contains is a well-documented and a (hopefully) well-tested method of an enterprise-level software framework, which (as a rule of thumb) usually means it is working properly.

In this particular case, the contains method is working fine. Your initial string contains $FB, so it also contains $F (and FB and $ and F and B, if you think about it).

Maybe (and I'm making a wild guess) instead you're trying to find what's contained after the last found item. In that case, don't use contains, use indexOf, save the value and then search from that saved value and on.

Edit per request, here is a sample of such code. Note that I haven't tested it, so there may be some checks missing:

     int currentIndex = 0;
     for(String s : list) {
       int foundIndex = description.indexOf(s, currentIndex);
       if(foundIndex >= 0) {
          System.out.println(s);
          currentIndex = foundIndex + 1;
       } 
     }