Programming are endless.

* 학창시절 틈틈히 재미로 했던 baseball 게임을 java의 swing을 이용하여 구현해봤습니다. 서로 자신만 아는 숫자를 정한 뒤 정해진 자리수 만큼 숫자를 불러 맞힌 수의 자리나 수에 따라 strike, ball 을 체크하여 상대방의 숫자를 맞히는 게임입니다.

--------------------------------------------------------------프로그램 다운로드

Baseball.exe

1. MainClass.java

main 메서드가 있는 클래스입니다. 이 클래스의 main 메서드에서 MainScreen 클래스의 객체를 생성하면서 프로그램이 시작됩니다.

MainClass.java------------------------------------------------------------------

public class MainClass {

public static void main(String[] args) {

new MainScreen();

}

}

2. MainScreen.java

JFrame을 상속받은 클래스입니다. 주 화면을 구성하는 클래스이며 여러 동작들을 포함하고 있습니다. 또한 ActionListener와 KeyListener 인터페이스를 상속받아 이벤트 처리도 구현하였습니다.

MainScreen.java--------------------------------------------------------------

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

public class MainScreen extends JFrame implements ActionListener, KeyListener {

// 레벨

final int EASY = 2;

final int NORMAL = 3;

final int HARD = 4;

final int HELL = 5;

int LEVEL;

// 시도 횟수

int easyNumber = 0;

int normalNumber = 0;

int hardNumber = 0;

int hellNumber = 0;

// 점수

int score = 0;

int accrueScore = 0;

// 텍스트아레아 내용

StringBuffer textArea = new StringBuffer();

int textAreaRow = 0;

// 컴퓨터와 유저의 패

StringBuffer comNumber = new StringBuffer();

StringBuffer userNumber = new StringBuffer();

// 패널 부분

JPanel panelView = new JPanel();

JPanel panelProgress = new JPanel();

JPanel panelButton = new JPanel();

// 메뉴 부분

JMenuBar menubar = new JMenuBar();

JMenu menuOption = new JMenu("Option");

JMenu menuHelp = new JMenu("Help");

JMenu mItemLevel = new JMenu("Level");

JMenuItem mItemMenual = new JMenuItem("Menual");

JMenuItem mItemMade = new JMenuItem("about program..");

JMenuItem mItemEasy = new JMenuItem("Easy");

JMenuItem mItemNormal = new JMenuItem("Normal");

JMenuItem mItemScore = new JMenuItem("Score");

JMenuItem mItemHard = new JMenuItem("Hard");

JMenuItem mItemHell = new JMenuItem("Hell");

// 텍스트필드 부분

JTextField tfieldView = new JTextField(8);

// 텍스트아레아 부분

JTextArea tAreaView = new JTextArea(10, 20);

// 스크롤 부분

JScrollPane scroll = new JScrollPane(tAreaView);

// 버튼 부분

JButton button0 = new JButton("0");

JButton button1 = new JButton("1");

JButton button2 = new JButton("2");

JButton button3 = new JButton("3");

JButton button4 = new JButton("4");

JButton button5 = new JButton("5");

JButton button6 = new JButton("6");

JButton button7 = new JButton("7");

JButton button8 = new JButton("8");

JButton button9 = new JButton("9");

JButton buttonBack = new JButton("←");

JButton buttonRandom = new JButton("R");

JButton buttonGo = new JButton("Go");

JButton buttonReset = new JButton("Reset");

public MainScreen() {

super("Hi! Baseball game!");

// 기본 레벨 NORMAL 설정

LEVEL = NORMAL;

// 컴퓨터 패 생성

comNumberCreation();

// 레이아웃 설정

setLayout(new BorderLayout());

panelButton.setLayout(new GridLayout(3, 4, 5, 5));

// 색깔 설정

menubar.setBackground(Color.orange);

// 텍스트 편집 설정

tfieldView.setEditable(false);

tAreaView.setEditable(false);

// 메뉴 추가

menubar.add(menuOption);

menubar.add(menuHelp);

menuOption.add(mItemLevel);

menuOption.add(mItemScore);

menuHelp.add(mItemMenual);

menuHelp.add(mItemMade);

mItemLevel.add(mItemEasy);

mItemLevel.add(mItemNormal);

mItemLevel.add(mItemHard);

mItemLevel.add(mItemHell);

setJMenuBar(menubar);

// 패널에 컨테이너 추가

panelView.add(tfieldView);

panelView.add(buttonGo);

panelView.add(buttonReset);

panelButton.add(button7);

panelButton.add(button8);

panelButton.add(button9);

panelButton.add(buttonBack);

panelButton.add(button4);

panelButton.add(button5);

panelButton.add(button6);

panelButton.add(buttonRandom);

panelButton.add(button1);

panelButton.add(button2);

panelButton.add(button3);

panelButton.add(button0);

panelProgress.add(scroll);

// 버튼 액션리스너 추가

button0.addActionListener(this);

button1.addActionListener(this);

button2.addActionListener(this);

button3.addActionListener(this);

button4.addActionListener(this);

button5.addActionListener(this);

button6.addActionListener(this);

button7.addActionListener(this);

button8.addActionListener(this);

button9.addActionListener(this);

buttonBack.addActionListener(this);

buttonRandom.addActionListener(this);

buttonGo.addActionListener(this);

buttonReset.addActionListener(this);

mItemEasy.addActionListener(this);

mItemNormal.addActionListener(this);

mItemHard.addActionListener(this);

mItemHell.addActionListener(this);

mItemScore.addActionListener(this);

mItemMenual.addActionListener(this);

mItemMade.addActionListener(this);

// 프레임에 패널 추가

add(panelView, "North");

add(panelProgress, "Center");

add(panelButton, "South");

// 프레임 설정

setBounds(200, 100, 250, 380);

setResizable(false);

setVisible(true);

// tfieldView 에 포커스 및 키리스너 등록

tfieldView.requestFocus();

tfieldView.addKeyListener(this);

}

// actionEvent 처리

@Override

public void actionPerformed(ActionEvent e) {

if (e.getActionCommand().equals("Easy")) {

LEVEL = EASY;

reset();

comNumberCreation();

JOptionPane.showMessageDialog(this, "Easy mode.", "Information",

JOptionPane.INFORMATION_MESSAGE);

}

if (e.getActionCommand().equals("Normal")) {

LEVEL = NORMAL;

reset();

comNumberCreation();

JOptionPane.showMessageDialog(this, "Normal mode.", "Information",

JOptionPane.INFORMATION_MESSAGE);

}

if (e.getActionCommand().equals("Hard")) {

LEVEL = HARD;

reset();

comNumberCreation();

JOptionPane.showMessageDialog(this, "Hard mode.", "Information",

JOptionPane.INFORMATION_MESSAGE);

}

if (e.getActionCommand().equals("Hell")) {

LEVEL = HELL;

reset();

comNumberCreation();

JOptionPane.showMessageDialog(this, "Hell mode.", "Information",

JOptionPane.INFORMATION_MESSAGE);

}

if (e.getActionCommand().equals("Score")) {

JOptionPane.showMessageDialog(this, "Your score is " + accrueScore

+ " points.\n----- try -----\nEasy: " + easyNumber + "\nNormal: " + normalNumber + "\nHard: " + hardNumber + "\nHell: " + hellNumber, "Score", JOptionPane.INFORMATION_MESSAGE);

}

if (e.getActionCommand().equals("Menual")) {

JOptionPane

.showMessageDialog(

this,

"This is Baseball Game. To win in this game, should the 3-digit number of the computer.\n\n* Game rules are as follows\n1. Does not allow duplication of the digits.\n2. The biggest digit 0 is not allowed.\n3. Ball a strike, if the digits match the digits are wrong, but if we hit the numbers count.\n4. Numbers accurately aligning 3strike the game ends.\n\n* Difficulty is as follows.\nEasy: 2 digit\nNormal: 3 digit\nHard: 4 digit\nHell: 5 digits",

"Instruction Manual",

JOptionPane.INFORMATION_MESSAGE);

}

if (e.getActionCommand().equals("about program..")) {

JOptionPane

.showMessageDialog(

this,

"* Baseball Game *\nMade by Jo Jae-Hyeok.\nKakao Talk ID: zealot71\ne-mail: zealot71@naver.com\n^-'",

"Information", JOptionPane.INFORMATION_MESSAGE);

}

if (e.getActionCommand().equals("0")) {

if (userNumber.length() < LEVEL) {

userNumber.append("0");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("1")) {

if (userNumber.length() < LEVEL) {

userNumber.append("1");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("2")) {

if (userNumber.length() < LEVEL) {

userNumber.append("2");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("3")) {

if (userNumber.length() < LEVEL) {

userNumber.append("3");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("4")) {

if (userNumber.length() < LEVEL) {

userNumber.append("4");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("5")) {

if (userNumber.length() < LEVEL) {

userNumber.append("5");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("6")) {

if (userNumber.length() < LEVEL) {

userNumber.append("6");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("7")) {

if (userNumber.length() < LEVEL) {

userNumber.append("7");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("8")) {

if (userNumber.length() < LEVEL) {

userNumber.append("8");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("9")) {

if (userNumber.length() < LEVEL) {

userNumber.append("9");

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("←")) {

tfieldView.setText(userNumber.reverse().delete(0, 1).reverse()

.toString());

}

if (e.getActionCommand().equals("R")) {

if (userNumber.toString().isEmpty())

userNumber.append((int) (Math.random() * 9 + 1));

else {

userNumber.append((int) (Math.random() * 10));

}

tfieldView.setText(userNumber.toString());

}

if (e.getActionCommand().equals("Go")) {

if (tfieldView.getText().isEmpty()) {

JOptionPane.showMessageDialog(this, "The number is not exists.",

"Warning", JOptionPane.WARNING_MESSAGE);

} else if (userNumber.length() != LEVEL) {

JOptionPane.showMessageDialog(this, "Entered is not a " + LEVEL + " digit number.",

"Warning", JOptionPane.WARNING_MESSAGE);

} else if (overlap(tfieldView.getText())) {

JOptionPane.showMessageDialog(this, "The same number exists.",

"Warning", JOptionPane.WARNING_MESSAGE);

} else {

Versus();

userNumber.delete(0, userNumber.length());

tfieldView.setText(userNumber.toString());

}

}

if (e.getActionCommand().equals("Reset")) {

reset();

}

}

@Override

public void keyPressed(KeyEvent e) {

if (e.getKeyChar() == '0') {

userNumber.append("0");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '1') {

userNumber.append("1");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '2') {

userNumber.append("2");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '3') {

userNumber.append("3");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '4') {

userNumber.append("4");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '5') {

userNumber.append("5");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '6') {

userNumber.append("6");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '7') {

userNumber.append("7");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '8') {

userNumber.append("8");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyChar() == '9') {

userNumber.append("9");

tfieldView.setText(userNumber.toString());

}

if (e.getKeyCode() == KeyEvent.VK_R) {

if (userNumber.toString().isEmpty())

userNumber.append((int) (Math.random() * 9 + 1));

else {

userNumber.append((int) (Math.random() * 10));

}

tfieldView.setText(userNumber.toString());

}

if (e.getKeyCode() == KeyEvent.VK_BACK_SPACE) {

tfieldView.setText(userNumber.reverse().delete(0, 1).reverse()

.toString());

}

if (e.getKeyCode() == KeyEvent.VK_ENTER) {

if (tfieldView.getText().isEmpty()) {

JOptionPane.showMessageDialog(this, "The number is not exists.",

"Warning", JOptionPane.WARNING_MESSAGE);

} else if (userNumber.length() != LEVEL) {

JOptionPane.showMessageDialog(this, "Entered is not a " + LEVEL + " digit number.",

"Warning", JOptionPane.WARNING_MESSAGE);

} else if (overlap(tfieldView.getText())) {

JOptionPane.showMessageDialog(this, "The same number exists.",

"Warning", JOptionPane.WARNING_MESSAGE);

} else {

Versus();

userNumber.delete(0, userNumber.length());

tfieldView.setText(userNumber.toString());

}

}

}

@Override

public void keyReleased(KeyEvent e) {

}

@Override

public void keyTyped(KeyEvent e) {

}

// 컴퓨터 패 생성 메서드

public void comNumberCreation() {

comNumber.append((int) (Math.random() * 9 + 1));

for (int i = 0; i < LEVEL - 1; i++) {

comNumber.append((int) (Math.random() * 10));

}

while (overlap(comNumber.toString())) {

comNumber.append((int) (Math.random() * 9 + 1));

for (int i = 0; i < LEVEL - 1; i++) {

comNumber.append((int) (Math.random() * 10));

}

}

}

// 중복 숫자 체크 메서드

public boolean overlap(String str) {

boolean over = false;

for (int i = 0; i < LEVEL - 1; i++) {

for (int j = i + 1; j < LEVEL; j++) {

if (str.charAt(i) == str.charAt(j)) {

over = true;

}

}

}

return over;

}

// 컴퓨터와 사용자 패 확인 메서드

public void Versus() {

int strike = 0;

int ball = 0;

for (int i = 0; i < LEVEL; i++) {

if (comNumber.charAt(i) == userNumber.charAt(i)) {

strike++;

}

}

for (int i = 0; i < LEVEL; i++) {

for (int j = 0; j < LEVEL; j++) {

if (comNumber.charAt(i) == userNumber.charAt(j)) {

ball++;

}

}

}

textAreaRow++;

textArea.append(textAreaRow + "  |  " + strike + " strike, "

+ (ball - strike) + " ball. --- " + tfieldView.getText() + "\n");

tAreaView.setText(textArea.toString());

if (strike == LEVEL) {

switch (LEVEL) {

case EASY:

score = 11 - textAreaRow;

easyNumber++;

break;

case NORMAL:

score = 21 - textAreaRow;

normalNumber++;

break;

case HARD:

score = 31 - textAreaRow;

hardNumber++;

break;

case HELL:

score = 41 - textAreaRow;

hellNumber++;

break;

}

JOptionPane.showMessageDialog(this, strike

+ " strike!\nGame over. You win.\n+" + score + " points.",

"Success", JOptionPane.INFORMATION_MESSAGE);

reset();

comNumberCreation();

} else if (textAreaRow == 10) {

switch (LEVEL) {

case EASY:

score = -5;

easyNumber++;

break;

case NORMAL:

score = -20;

normalNumber++;

break;

case HARD:

score = -40;

hardNumber++;

break;

case HELL:

score = -60;

hellNumber++;

break;

}

JOptionPane.showMessageDialog(this, "Game over. You lose.\nComputer Number: " + comNumber + "\n" +

+ score + " points.", "Failure",

JOptionPane.INFORMATION_MESSAGE);

reset();

comNumberCreation();

}

accrueScore += score;

score = 0;

}

public void reset() {

userNumber.delete(0, userNumber.length());

comNumber.delete(0, comNumber.length());

textArea.delete(0, textArea.length());

textAreaRow = 0;

tfieldView.setText("");

tAreaView.setText("");

}

}

프로그램 실행시 첫 화면 모습.

Option 메뉴 모습.

Help - Menual 의 프로그램 사용법.

게임에서 졌을 때 화면.

게임에서 이겼을 때 화면.

Option - Score 메뉴에서 점수 확인 모습.