package graphtest;
import javax.swing.*;
import java.awt.*;
import java.awt.Color;
public class Panel extends JPanel
{ @Override // переозначення методу малювання
  public void paintComponent (Graphics g) 
  { super.paintComponent(g); 
    g.setColor(Color.yellow);
    Graphics2D g2 = (Graphics2D) g;
    float [] t ={0.0f, 0.167f, 0.333f, 0.5f, 0.667f, 0.833f, 1.0f};
    Color [] c = {Color.red,  Color.orange, Color.yellow,
                  Color.green,Color.cyan,   Color.blue,
              new Color(139, 0, 255)};

    LinearGradientPaint
    gp = new LinearGradientPaint (200.f, 0.f, 400.f, 0.f, t, c,
    MultipleGradientPaint.CycleMethod.NO_CYCLE);
    g2.setPaint (gp);
    g2.fill (new Rectangle.Double (10, 10, 700, 50));

    gp = new LinearGradientPaint (200.f, 0.f, 400.f, 0.f, t, c,
    MultipleGradientPaint.CycleMethod.REFLECT);
    g2.setPaint (gp);
    g2.fill (new Rectangle.Double (10, 70, 700, 50));

    gp = new LinearGradientPaint (200.f, 0.f, 400.f, 0.f, t, c,
    MultipleGradientPaint.CycleMethod.REPEAT);
    g2.setPaint (gp);
    g2.fill (new Rectangle.Double (10, 130, 700, 50));
    
    RadialGradientPaint
    gr = new RadialGradientPaint (110.f, 200.f, 50.f, t, c,
    MultipleGradientPaint.CycleMethod.NO_CYCLE);
    g2.setPaint (gr);
    g2.fill (new Rectangle.Double (10, 200, 200, 100));
    
    gr = new RadialGradientPaint (330.f, 200.f, 50.f, t, c,
    MultipleGradientPaint.CycleMethod.REFLECT);
    g2.setPaint (gr);
    g2.fill (new Rectangle.Double (230, 200, 200, 100));
    
    gr = new RadialGradientPaint (550.f, 200.f, 50.f, t, c,
    MultipleGradientPaint.CycleMethod.REPEAT);
    g2.setPaint (gr);
    g2.fill (new Rectangle.Double (450, 200, 200, 100));    
  }
}