AlbersSquares.java

Below is the syntax highlighted version of AlbersSquares.java from §3.1 Using Data Types.

/******************************************************************************
 *  Compilation:  javac AlbersSquares.java
 *  Execution:    java AlbersSquares r1 g1 b1 r2 g2 b2
 *  Dependencies: StdDraw.java
 *
 *  This program displays the colors entered in RGB format
 *  on the command line in the familiar format developed
 *  in the 1960s by the color theorist Josef Albers that
 *  revolutionized the way that people think about color.
 *
 *  % java AlbersSquares 0 174 239  147 149 252
 *
 ******************************************************************************/

import java.awt.Color;

public class AlbersSquares {

    public static void main(String[] args) {

        StdDraw.setCanvasSize(800, 800);

        // first color
        int r1 = Integer.parseInt(args[0]);
        int g1 = Integer.parseInt(args[1]);
        int b1 = Integer.parseInt(args[2]);
        Color c1 = new Color(r1, g1, b1);

        // second color
        int r2 = Integer.parseInt(args[3]);
        int g2 = Integer.parseInt(args[4]);
        int b2 = Integer.parseInt(args[5]);
        Color c2 = new Color(r2, g2, b2);

        // first Albers square
        StdDraw.setPenColor(c1);
        StdDraw.filledSquare(0.25, 0.5, 0.2);
        StdDraw.setPenColor(c2);
        StdDraw.filledSquare(0.25, 0.5, 0.1);

        // second Albers square
        StdDraw.setPenColor(c2);
        StdDraw.filledSquare(0.75, 0.5, 0.2);
        StdDraw.setPenColor(c1);
        StdDraw.filledSquare(0.75, 0.5, 0.1);
    }
}