swing - Java - Iterate through an array everytime a button is pressed -

i iterate through list every time button pressed, using jbutton, jtextfield , event's actionlistener. every time "next" button pressed next item in array should displayed in jtextfield. have created getters, setters , constructor, it's literally following piece i'm having trouble with.

@override      public void actionperformed(actionevent evt){      object source = evt.getsource();       string[] item = getthing();       for(int = 0; < 3; ++){          string currenti = item[i];      }      if(source.equals(btnnxt)){          txtdisplayfield.settext(currenti);      } } 

in if statement receive error "cannot find symbol", referring currenti.

you're initializing currenti string within for loop's scope.

the variable therefore inaccessible outside for loop.

move equality check , assignment inside loop.

for(int = 0; < 3; ++){     string currenti = item[i];      if(source.equals(btnnxt)){         txtdisplayfield.settext(currenti);         // stop iteration found match         break;     } }