java - how to push emement of hashmap in stack -


recently trying push hashmap element in stack in java every time push new element in stack elements in stack replaced pushed element.

here code:

state.previousstate = dotposcolor; state.pushstate(); state.getelement(); public void pushstate(){     undos.push(previousstate);     log.d("test","first->"+undos.firstelement().tostring());     log.d("test","last->"+undos.lastelement().tostring());     redos.clear(); }

recently trying push hashmap element in stack in java every time push new element in stack elements in stack replaced pushed element.

i'm going use crystal ball , tell you declaring intermediate variable globally, when needs local. ie:

for( loop stuff here ) {     object o = hashmap.get("fwerin"); }

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