HelloTurtle.java

/*************************************************************************
 *  Compilation:  javac HelloTurtle.java
 *  Execution:    java HelloTurtle s N
 *  Dependencies: StdDraw.java
 *
 *  Plots the String s, N times at random locations, and in random
 *  colors.
 *
 *  % java HelloTurtle Hello 10
 *
 *  % java HelloTurtle World 15
 *
 *  % java HelloTurtle Java 20
 *
 *
 *************************************************************************/

import java.awt.Color;
import java.awt.Font;

public class HelloTurtle { 

    public static void main(String[] args) { 
        String s = args[0];
        int N = Integer.parseInt(args[1]);
        int SIZE = 512;
        StdDraw.create(SIZE, SIZE);
        StdDraw.setScale(0, 0, 1, 1);
        StdDraw.clear(Color.black);
        Font f = new Font("Arial", Font.BOLD, 60);
        StdDraw.setFont(f);

        for (int i = 0; i < N; i++) {
            StdDraw.setColor(Color.getHSBColor((float) Math.random(), 1.0f, 1.0f));
            StdDraw.go(Math.random(), Math.random());
            StdDraw.write(s);
        }

        StdDraw.show();
    }

}