将repaint（）方法添加到JFrame或Viewer？

Question

import java.awt.event.*;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;


public class ChessRunner implements MouseListener
{  

    private static final int FRAME_WIDTH = 500;
    private static final int FRAME_HEIGHT = 600;
    private static int colFrom;
    private static int rowFrom;
    private static int colTo;
    private static int rowTo;

    public static void main(String[] args)
    {  

        JFrame frame = new JFrame();
        ChessViewer theImgTester = new ChessViewer(); 
        frame.add(theImgTester);
        frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);

        frame.addMouseListener(new MouseAdapter(){

            public void mouseClicked(MouseEvent event){

            }

            /**
             * Gets initial mouse click position, translates it to row and column
             */
            public void mousePressed(MouseEvent event){
                colFrom = (int)((event.getX()/45));
                rowFrom = (int)(9-(event.getY()/45));
            }
            /**
             * Set the new row and column after mouse is released.
             */
        public void mouseReleased(MouseEvent event){
            colTo = (int)(event.getX()/45);
            rowTo = (int)(9-event.getY()/45);


            theImgTester.getBoard().move(rowFrom,colFrom,rowTo,colTo);
            theImgTester.getBoard().print();
            theImgTester.repaint();
            frame.repaint();
        }
        });
    }   
}

这是一款有棋子的棋盘游戏。

在这里，我希望在完成拖动后重新绘制图形。 我在控制台中有一个非图形版本（基于文本），显示移动的部分。 我已经将repaint（）方法添加到JFrame和Component（theImgTester）。

ChessViewer theImgTester是一个包含棋子和棋盘的组件。 我试图让repaint（）方法工作。 我需要更改ChessViewer中的任何内容吗？我很确定问题在于这个文件。 请给我一些提示！

编辑：ChessViewer.java

import java.awt.Graphics2D; 
import java.awt.Graphics; 
import javax.swing.JComponent;
import javax.swing.JLabel;

public class ChessViewer extends JComponent{
    private JLabel turn = new JLabel();


    private ChessBoard board;

    /**
     * Constructor for the chess viewer.
     * Constructs a new chessboard.
     */
        public ChessViewer() {
        board= new ChessBoard();
        board.start();
    }


    /**
     * Returns the chessboard
     * @return
     */
    public ChessBoard getBoard(){
        return board;
    }




    /**
     * Method to print the chessboard and pieces on the chessboard.
     */
    public void paint(Graphics h) {
        Graphics2D g = (Graphics2D)h;

        board.paint(g);
        for(int i = 0; i < board.getSizeB(); i++){
            for(int j = 0; j<board.getSizeB(); j++){
                board.getBoard()[j][i].paint(h);
            }
        }


    }
}