package csci3366.hw3;

/**
 * Class to test SimpleLCG.
 */
public class TestSimpleLCG {

    /**
     * Main method for simple testing.
     * @param args command-line arguments, seed and number of samples
     */
    public static void main(String[] args) {
        String usageMsg = "arguments:  seed, number of samples";
        if (args.length < 2) {
            System.err.println(usageMsg);
            System.exit(1);
        }
        int seed = 0;
        int numSamples = 0;
        try {
            seed = Integer.parseInt(args[0]);
            numSamples = Integer.parseInt(args[1]);
        }
        catch (NumberFormatException e) {
            System.err.println(usageMsg);
            System.exit(1);
        }
        SimpleLCG gen = new SimpleLCG(seed);
        for (int i = 0; i < numSamples; ++i) {
            long n = gen.next();
            double d = (double) n / (double) SimpleLCG.RANDMAX;
            System.out.printf("%20d %17.15f\n", n, d);
        }
    }
}