JTable上的最小值单元格是如何着色的？

import javax.swing.*;
import javax.swing.table.DefaultTableCellRenderer;
import java.awt.*;

public class MinValueRenderer extends DefaultTableCellRenderer {

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        Component rendererComponent = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);

        // 获取表格数据模型
        TableModel model = table.getModel();

        // 获取最小值
        double minValue = Double.MAX_VALUE;
        for (int i = 0; i < model.getRowCount(); i++) {
            double cellValue = Double.parseDouble(model.getValueAt(i, column).toString());
            minValue = Math.min(minValue, cellValue);
        }

        // 根据条件设置背景色
        if (Double.parseDouble(value.toString()) == minValue) {
            rendererComponent.setBackground(Color.YELLOW);
        } else {
            rendererComponent.setBackground(table.getBackground());
        }

        return rendererComponent;
    }
}

JTable table = new JTable();
table.setDefaultRenderer(Object.class, new MinValueRenderer());