java - values not being added to arraylist -
public static void main(string[] args) { list <int []> arraylist = new arraylist<int []>(); // array list hold child arrays priorityqueue <state> open = new priorityqueue<state>(); // priority queue minimum huristics list<state> closed = new arraylist<state>(); // create list of states hold visited states int [] arr = new int [9]; for(int = 0; < 9; i++) { if(i == 1) arr[i] = 0; else arr[i] = + 1; } state check = new state(arr,0,0,0); // for(int = 0; i< 9; i++) // system.out.println(arraylist.get(0)[i]); arraylist = gen_next(closed,arraylist,check); int j = 0; int [] x = new int [9]; system.out.println("from outside"); for(int = 1; i< 3;i++) { x = (arraylist.get(i)); for(int k = 0; k < 9; k++) system.out.print(x[k] + " "); system.out.println(""); //system.out.println(x); } } public static list<int []> gen_next(list <state> closed,list <int []> next_arrlist,state current) { // list <int []> next_arrlist = new arraylist<int []>(); int [] cur_board = current.get_board(); int [] copy_arr = new int [cur_board.length]; int hole = current.gethole(); system.out.println(hole); system.out.println(hole); system.out.println("hello"); copy(cur_board, copy_arr); if(hole == 0) { swap(copy_arr,hole,hole + 1); next_arrlist.add(copy_arr); for(int = 0; i< 9;i++) system.out.print(next_arrlist.get(0)[i]); system.out.println(""); copy(cur_board,copy_arr); swap(copy_arr,hole,hole + 3); next_arrlist.add(copy_arr); for(int = 0; i< 9;i++) system.out.print(next_arrlist.get(0)[i]); system.out.println(""); copy(cur_board,copy_arr); } else if (hole == 1) { swap(copy_arr,hole,hole - 1); next_arrlist.add(copy_arr); for(int = 0; i< 9;i++) { system.out.print(copy_arr[i] +" "); } system.out.println(""); for(int = 0; i< 9;i++) system.out.print(next_arrlist.get(0)[i]+" "); system.out.println(""); copy(cur_board, copy_arr); swap(copy_arr,hole,hole + 1); next_arrlist.add(copy_arr); copy(cur_board,copy_arr); swap(copy_arr,hole , hole + 3); for(int = 0; i< 9;i++) { system.out.print(copy_arr[i]+" "); } next_arrlist.add(copy_arr); system.out.println(""); for(int = 0; i< 9;i++) { system.out.print(next_arrlist.get(1)[i]+" "); } copy(cur_board,copy_arr); } else if (hole == 2) { swap(copy_arr,hole , hole - 1); for(int = 0; i<9;i++) system.out.print(copy_arr[i]+" "); system.out.println(""); // value must reflected in arraylist next_arrlist .add(copy_arr); for(int = 0; i< 9;i++) system.out.print(next_arrlist.get(0)[i]+" "); system.out.println(""); copy(cur_board,copy_arr); swap(copy_arr,hole, hole +3); for(int = 0; i<9;i++) system.out.print(copy_arr[i]+" "); system.out.println(""); next_arrlist.add(copy_arr); for(int = 0; i< 9;i++) system.out.print(next_arrlist.get(0)[i]+" "); copy(cur_board,copy_arr); } return next_arrlist; } i wrote code generate new arrays existing array , store each array in arraylist, arraylist here contains existing array eventhough printing conents of arraylist inside fub=nction produce correct result.
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