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I draw a triangle using line. How can I fill color on it? So far I can only success color the line but not fill the color.
public void paintComponent(Graphics g){
super.paintComponents(g);
int k=0;
for (j=0 ; j < numOfLines; j++){ // the values of numOfLines retrieved from other method.
g.setColor(Color.green);
g.drawLine(x[k], x[k+1], x[k+2], x[k+3]);
k = k+4; //index files
}
642
g. fillPolygon(p); // Fills the triangle above.
1. Use method drawPolygon and fillPolygon of the Graphics class to draw and fill the shapes – Square, Pentagon, Rectangle and Triangle. 2. Use method drawOval and fillOval of the Graphics class to draw and fill the shapes – Oval and Circle.
swing and drawPolygon to Draw a Triangle in Java. We use JFrame to create a top-level container, and then add a panel, which is our DrawATriangle class that extends JPanel , to it. As shown in the code below, we call the drawPolygon method inside the paintComponent to create a triangle on the Graphics object g .
Make a Polygon from the vertices and fill that instead, by calling fillPolygon(...):
// A simple triangle.
x[0]=100; x[1]=150; x[2]=50;
y[0]=100; y[1]=150; y[2]=150;
n = 3;
Polygon p = new Polygon(x, y, n); // This polygon represents a triangle with the above
// vertices.
g.fillPolygon(p); // Fills the triangle above.
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