public static final int TYPE_SIZE = 8;
public static final int ROW = 8;
public static final int COL = 8; 
private static Random RAND = new Random();
private int[][] arr = new int[ROW][COL];

private static List<Integer> TYPE_SET = new ArrayList<Integer>();

public AppRun(){
    for(int i = 0; i < 8; i++){
        TYPE_SET.add(i);
    }
}

public static void main(String[] args){
    AppRun app = new AppRun();
    app.initRand();
    app.print();

    System.out.print("Please input >>");
    Scanner input=new Scanner(System.in);   //定义一个从系统缓存读取数据的对偶
    String str=input.next();   //从缓存中读出数据
    String[] rcs = str.split("-");
    int r1 = Integer.parseInt(rcs[0]);
    int c1 = Integer.parseInt(rcs[1]); 
    int r2 = Integer.parseInt(rcs[2]);
    int c2 = Integer.parseInt(rcs[3]); 
    System.out.println("(" + r1 + "," + c1 + ") <---> (" + r2 + "," + c2 + ")");//
    app.exchange(r1, c1, r2, c2);
    app.print();
    if(app.checkSome().size() > 0){
        System.out.println("==============");
    }
}

public void initRand(){
    for(int row = 0; row < ROW; row++){
        for(int col = 0; col < COL; col++){
            int left1 = -1,left2 = -1,up1 = -1,up2 = -1;
            if(col >= 2){
                left1 = arr[row][col-2];
                left2 = arr[row][col-1];
            }
            if(row >= 2){
                up1 = arr[row-2][col];
                up2 = arr[row-1][col];
            }
            arr[row][col] = getNextType(left1, left2, up1, up2);
        }
    }
}

public void exchange(int r1, int c1, int r2, int c2){
    int temp = arr[r1][c1];
    arr[r1][c1] = arr[r2][c2];
    arr[r2][c2] = temp;
}

public List<Arr> checkSome(){
    List<Arr> list = new ArrayList<Arr>();
    int i = 0;
    int row = 0;

    while(true){
        if(arr[row][i] == arr[row][i+1]){

        }
        break;
    }
    return list;
    //up

    //down
    //left
    //right
}

public void print(){
    for(int row = 0; row < ROW; row++){
        for(int col = 0; col < COL; col++){
            if(arr[row][col] == -1){
                System.out.print("X-");
            }else{
                System.out.print(arr[row][col] + "-");
            }
        }
        System.out.println();
    }
    System.out.println();
}

public int getNextType(int left1, int left2, int up1, int up2){

    List<Integer> list = new ArrayList<Integer>();
    if(left1 == left2){
        if(up1 == up2){
            for(int i = 0; i < TYPE_SIZE; i++){
                if(i != left1 && i != up1){
                    list.add(i);
                }
            }
        }else{
            for(int i = 0; i < TYPE_SIZE; i++){
                if(i != left1){
                    list.add(i);
                }
            }
        }
    }else{
        if(up1 == up2){
            for(int i = 0; i < TYPE_SIZE; i++){
                if(i != up1){
                    list.add(i);
                }
            }
        }else{
            for(int i = 0; i < TYPE_SIZE; i++){
                list.add(i);
            }
        }
    }

    int index = RAND.nextInt(list.size());
    return list.get(index);
}