FlipCoin.java

/* save as FlipCoin.java */

import java.util.Random;

class Coins {

    Random r = new Random();

    public String flipCoin() {
        if (r.nextInt(100)>=50) {
            return ("heads");
        } else {
            return ("tails");
        } // if
    } // flipCoin()
} // class Coins

public class FlipCoin {
    public static void main(String[] args) {
        Coins myCoin = new Coins();
        String side = null;
        int heads = 0, tails = 0;
        for (int i=0; i<100; i++) {
            side = myCoin.flipCoin();
            System.out.print(side+"\t");
            if (side.equals("heads")) {
                heads++;
            } else {
                tails++;
            } // if
        } // for
        System.out.println("Number of heads: "+heads);
        System.out.println("Number of tails: "+tails);
    } // main()
} // class FlipCoin