java - unable to match edittext with image name -

learning android making simple guessing game, have set images in arraylist , applied random operation on it, i'm confused how match edit text value image name can set score.

   public class mainactivity extends appcompatactivity {     private edittext edittext;     private button button;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          arraylist<integer> list = new arraylist<integer>();         imageview random_image = (imageview) findviewbyid(r.id.imageview);         final int[] images = {r.drawable.kung_fu_panda, r.drawable.mr_nobody, r.drawable.toy_story};         list.add(r.drawable.kung_fu_panda);         list.add(r.drawable.mr_nobody);         list.add(r.drawable.toy_story);         int position = new random().nextint(list.size());         random_image.setimageresource((integer) list.get(position));         list.remove(position);          button = (button) findviewbyid(r.id.button);         edittext = (edittext) findviewbyid(r.id.edittext);          button.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view v) {                 validateinput();             }         });      }      private void validateinput() {         string input = edittext.gettext().tostring();    } 

you can try definition name's array of images, , name random position, , use currentname save name.

string currentname;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      arraylist<integer> list = new arraylist<integer>();     imageview random_image = (imageview) findviewbyid(r.id.imageview);     final string imagenames = {"kung fu panda", "mr nobody", "toy story"};     list.add(r.drawable.kung_fu_panda);     list.add(r.drawable.mr_nobody);     list.add(r.drawable.toy_story);     int position = new random().nextint(list.size());     random_image.setimageresource((integer) list.get(position));     currentname = imagenames[position];     list.remove(position);      button = (button) findviewbyid(r.id.button);     edittext = (edittext) findviewbyid(r.id.edittext);      button.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {             validateinput();         }     });  } 

then, in validateinput() method, can use currentname compare, notice case, use string.tolowercase() format input string.

private boolean validateinput() {     string input = edittext.gettext().tostring();     if(!textutils.isempty(input)){          input = input..tolowercase();          if(input.equeals(currentname)){              return true;          }     }     return false; }