java - java awt中从字符串参数到颜色

Question

我想通过我的字符串参数设置Polygon的颜色。这是我的代码:

public void polygon(int xPoints[], int yPoints[], int nPoints, String col) {
    this.graphics.setColor(col);
    this.graphics.drawPolygon(xPoints, yPoints, nPoints);

}

这不起作用。因此，经过一些研究，我尝试在代码中添加 Color c = c.web(col); 这也行不通。如何将字符串 col 转换为 color？

Answer 1

您可以使用以下内容:

// Fill the map with colors you required
static Map<String, Color> colorMap = Map.ofEntries(Map.entry("RED", Color.RED),
        Map.entry("BLUE", Color.BLUE),
        Map.entry( "BLACK", Color.BLACK),
        Map.entry( "ORANGE", Color.ORANGE));

static Color getColor(String col)
{
        return colorMap.get(col.toUpperCase());
}

public void polygon(int xPoints[], int yPoints[], int nPoints, String col)
{
    this.graphics.drawPolygon(xPoints, yPoints, nPoints);
    this.graphics.setColor( getColor(col) );
}