I made a rock-paper-scissors game in Java (CLI)

specification

・ Goo: 1, Choki: 2, Par: 3. ・ The number of players will be one to one. ・ The number of battles will be one.

Operation screen

Source code

Main.java Main class

package janken;

public class Main {
	public static void main(String[] args) {
		GameController gc = new GameController();
		gc.start();	//game start
		gc.end();	//Game over
	}
}

GameController.java Rock-paper-scissors game controller class

package janken;

/**
 * GameController Class
 *Control the game
 * @author user
 *
 */
public class GameController {
	private Hand myHand;;
	private Hand opponentHand;
	private Rule rule;

	/**
	 *constructor
	 */
	public GameController() {
		this.rule = new Rule();
		this.myHand = new Hand();
		this.opponentHand = new Hand();
	}

	/**
	 * start method
	 *Start the game
	 */
	public void start() {
		System.out.println("Start rock-paper-scissors.");

		do {
			myHand.setHand();
			opponentHand.setRandomHand();
			rule.showHands(myHand, opponentHand);
		}while(rule.isDraw(myHand, opponentHand));

		rule.showResult(myHand, opponentHand);
	}

	/**
	 * end method
	 *End the game
	 */
	public void end() {
		System.out.println("Finish the rock-paper-scissors.");

	}
}

Hand.java Rock-paper-scissors hand object class

package janken;
import java.util.InputMismatchException;
import java.util.Random;
import java.util.Scanner;

/**
 * Hand Class
 *Rock-paper-scissors hand object class
 * @author user
 *
 */
public class Hand {
	private int hand;

	/**
	 * setHand method
	 *Set hands with standard input
	 */
	public void setHand() {
		System.out.println("Please enter your hand.");
		System.out.println("Goo: 1, Choki: 2, Par: 3");

		while(true) {
			try {
				Scanner scan = new Scanner(System.in);
				this.hand = scan.nextInt();
				break;
			}catch(InputMismatchException e){
				System.out.println("Please enter a numerical value.");
			}
		}
	}

	/**
	 * setRandomHand method
	 *Randomly set hands
	 */
	public void setRandomHand() {
		Random random = new Random();
		this.hand = random.nextInt(3)+1;
	}

	/**
	 * handName method
	 *Returns the name of the hand
	 * @return
	 */
	public String handName() {
		String handName = null;

		if(this.hand == 1) handName = "Goo";
		if(this.hand == 2) handName = "Choki";
		if(this.hand == 3) handName = "Par";

		return handName;
	}

	/**
	 * hand method
	 *Returns the value of the hand
	 * @return
	 */
	public int hand() {
		return this.hand;
	}
}

Rule.java Class that defines the rules of rock-paper-scissors

package janken;

/**
 * Rule Class
 *Class that defines the rule
 * @author user
 *
 */
public class Rule {
	/**
	 * showHands method
	 *Display your own hand and the other's hand.
	 * @param myHand
	 * @param opponetHand
	 */
	public void showHands(Hand myHand, Hand opponetHand) {
		System.out.print("My hand is"+ myHand.handName() +"。");
		System.out.print("The other party's hand"+ opponetHand.handName() +"。");
		System.out.println("");
	}

	/**
	 * isDraw method
	 *Judge Aiko
	 * @param myHand
	 * @param opponetHand
	 * @return
	 */
	public boolean isDraw(Hand myHand, Hand opponetHand) {
		if(myHand.hand() == opponetHand.hand()) {
			System.out.println("Aiko!");
			return true;
		}

		return false;
	}

	/**
	 * showResult method
	 *Display the result of victory or defeat
	 * @param myHand
	 * @param opponetHand
	 */
	public void showResult(Hand myHand, Hand opponetHand) {
		String result;
		// 1:Goo, 2: Choki, 3:Par
		if((myHand.hand() == 1 && opponetHand.hand() == 2) ||
		    (myHand.hand() == 2 && opponetHand.hand() == 3) ||
			(myHand.hand() == 3 && opponetHand.hand() == 1)) {
			result = "win";
		}else {
			result = "Lose";
		}
		System.out.println("your" + result + "is.");
	}

}

Github https://github.com/TakumiKondo/janken