这是颜色的常量,自己设定的呀...
static Color black
The color black.
static Color BLACK
The color black.
static Color blue
The color blue.
static Color BLUE
The color blue.
static Color cyan
The color cyan.
static Color CYAN
The color cyan.
static Color DARK_GRAY
The color dark gray.
static Color darkGray
The color dark gray.
static Color gray
The color gray.
static Color GRAY
The color gray.
static Color green
The color green.
static Color GREEN
The color green.
static Color LIGHT_GRAY
The color light gray.
static Color lightGray
The color light gray.
static Color magenta
The color magenta.
static Color MAGENTA
The color magenta.
static Color orange
The color orange.
static Color ORANGE
The color orange.
static Color pink
The color pink.
static Color PINK
The color pink.
static Color red
The color red.
static Color RED
The color red.
static Color white
The color white.
static Color WHITE
The color white.
static Color yellow
The color yellow.
static Color YELLOW
The color yellow.
static Color black
The color black.
static Color BLACK
The color black.
static Color blue
The color blue.
static Color BLUE
The color blue.
static Color cyan
The color cyan.
static Color CYAN
The color cyan.
static Color DARK_GRAY
The color dark gray.
static Color darkGray
The color dark gray.
static Color gray
The color gray.
static Color GRAY
The color gray.
static Color green
The color green.
static Color GREEN
The color green.
static Color LIGHT_GRAY
The color light gray.
static Color lightGray
The color light gray.
static Color magenta
The color magenta.
static Color MAGENTA
The color magenta.
static Color orange
The color orange.
static Color ORANGE
The color orange.
static Color pink
The color pink.
static Color PINK
The color pink.
static Color red
The color red.
static Color RED
The color red.
static Color white
The color white.
static Color WHITE
The color white.
static Color yellow
The color yellow.
static Color YELLOW
The color yellow.
import javax.swing.*;public class aa extends JFrame
{
public static void main(String args[])
{
aa d = new aa();
d.getContentPane().setBackground(Color.black);
d.setSize(200, 200);
d.setVisible(true);
}
}
GraphicsEnvironment environment = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice device = environment.getDefaulScreenDevice(); DisplayMode displaymode;
device.setFullScreenWindow(frame);// frame extends from JFrame;
device.setDeviceDiplayMode(displaymode); setBackground(Color.black);
setForeground(Color.black);
Graphics g = this.getGraphics();
g.setColor(Color.red);
g.drawString("Hello World!", 20, 50);
g.dispose();
但却不能正常显示黑色的背景,怎么回事?