A-M baby

Task/Greyscale-bars-Display/Java/greyscale-bars-display.java

@@ -0,0 +1,46 @@
+import javax.swing.* ;
+import java.awt.* ;
+
+public class Greybars extends JFrame {
+   private int width ;
+   private int height ;
+
+   public Greybars( )  {
+      super( "grey bars example!" ) ;
+      width = 640 ;
+      height = 320 ;
+      setSize( width , height ) ;
+      setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ) ;
+      setVisible( true ) ;
+    }
+
+    public void paint ( Graphics g ) {
+      int run = 0 ;
+      int colorcomp = 0 ; //component of the color
+      for ( int columncount = 8 ; columncount < 128 ; columncount *= 2 ) {
+	 int colorgap = 255 / columncount ; //by this gap we change the background color
+	 int columnwidth = width / columncount ;
+	 int columnheight = height / 4 ;
+	 if ( run % 2 == 0 ) //switches color directions with every for loop
+	    colorcomp = 0 ;
+	 else {
+	    colorcomp = 255 ;
+	    colorgap *= -1 ;
+	 }
+	 int ystart = 0 + columnheight * run ;
+	 int xstart = 0 ;
+	 for ( int i = 0 ; i < columncount ; i++ ) {
+	    Color nextColor = new Color( colorcomp, colorcomp, colorcomp ) ;
+	    g.setColor( nextColor ) ;
+	    g.fillRect( xstart , ystart , columnwidth , columnheight ) ;
+	    xstart += columnwidth ;
+	    colorcomp += colorgap ;
+	 }
+	 run++ ;
+      }
+    }
+
+    public static void main( String[ ] args ) {
+       Greybars gb = new Greybars( ) ;
+    }
+}