title: How to fill color on triangle
body: <p>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.</p>
  
  <pre><code>public void paintComponent(Graphics g){
          super.paintComponents(g);
          int k=0;
          for (j=0 ; j &lt; 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
          }
  </code></pre>