コンパイルエラー、シンボルが見つからない。どのような書き方にすれば良いのでしょうか？

###前提・実現したいこと
int numT = dice1._d[dice.TOP];
がコンパイルエラーです。シンボルが見つからないとされます。

どのように書き換えた良いのでしょうか？

###発生している問題・エラーメッセージ
コンパイルエラー、シンボルが見つからない

エラーメッセージ

###該当のソースコード

java
1import java.util.*;
2
3public class Main{
4	private static final Scanner scan = new Scanner(System.in);
5
6	public static void main(String[] args){
7		
8		int[] d = new int[6];
9		for(int i = 0; i < 6; i++){
10			d[i] = scan.nextInt();
11		}
12		Dice dice1 = new Dice(d);
13		for(int i = 0; i < 6; i++){
14			d[i] = scan.nextInt();
15		}
16		Dice dice2 = new Dice(d);
17		int numT = dice1._d[dice.TOP];
18		int numS = dice1._d[dice.SOUTH];
19		boolean flg;
20		dice2.setTop(numT);
21		if(dice2.setSouth(numS)){
22			if((dice1._d[dice.NORTH] == dice2._d[dice.NORTH]) && (dice1._d[dice.EAST] == dice2._d[dice.EAST]) && 
23				(dice1._d[dice.WEST] == dice2._d[dice.WEST]) && (dice1._d[dice.BOTTOM] == dice2._d[dice.BOTTOM])){
24				flg = true;
25			} else{
26				flg = false;
27			}
28		} else{
29			flg = false;
30		}
31		System.out.println(flg? "Yes" : "No");
32	}
33}
34
35class Dice{
36
37	int[] _d = new int[6];
38	public static final int
39		TOP = 0, SOUTH = 1, EAST = 2,
40		WEST = 3, NORTH = 4, BOTTOM = 5; // 定数
41
42	public Dice(int[] d){ // コンストラクタ
43		for(int i = 0; i < 6; i++){
44			_d[i] = d[i];
45		}
46	}
47
48	public int show(int side){ // 戻り値のあるメソッド
49		return _d[side];
50	}
51
52	public void setTop(int num){
53		if(_d[SOUTH] == num){
54			rollNorth();
55		} else if(_d[EAST] == num){
56			rollWest();
57		} else if(_d[WEST] == num){
58			rollEast();
59		} else if(_d[NORTH] == num){
60			rollSouth();
61		} else if(_d[BOTTOM] == num){
62			rollNorth();
63			rollNorth();
64		}
65	}
66
67	public boolean setSouth(int num){
68		for(int i = 0; i < 3; i++){
69			if(_d[SOUTH] != num){
70				rollRight();
71			} else{
72				return true;
73			}
74		}
75		return false;
76	}
77
78	public void rollSouth(){
79		int tmp = _d[TOP];
80		_d[TOP] = _d[NORTH];
81		_d[NORTH] = _d[BOTTOM];
82		_d[BOTTOM] = _d[SOUTH];
83		_d[SOUTH] = tmp;
84	}
85
86	public void rollNorth(){
87		int tmp = _d[TOP];
88		_d[TOP] = _d[SOUTH];
89		_d[SOUTH] = _d[BOTTOM];
90		_d[BOTTOM] = _d[NORTH];
91		_d[NORTH] = tmp;
92	}
93
94	public void rollEast(){
95		int tmp = _d[TOP];
96		_d[TOP] = _d[WEST];
97		_d[WEST] = _d[BOTTOM];
98		_d[BOTTOM] = _d[EAST];
99		_d[EAST] = tmp;
100	}
101
102	public void rollWest(){
103		int tmp = _d[TOP];
104		_d[TOP] = _d[EAST];
105		_d[EAST] = _d[BOTTOM];
106		_d[BOTTOM] = _d[WEST];
107		_d[WEST] = tmp;
108	}
109
110	public void rollRight(){
111		int tmp = _d[SOUTH];
112		_d[SOUTH] = _d[WEST];
113		_d[WEST] = _d[NORTH];
114		_d[NORTH] = _d[EAST];
115		_d[EAST] = tmp;
116	}
117}