Java小游戏源代码的分享，让人们能够轻松开展游戏开发的工作。在这篇文章中，我们将介绍一些简单的Java小游戏，以及它们的完整源代码，供大家学习和使用。

1. “Connect Four”游戏源代码

“Connect Four”是一款简单的策略游戏，又称为“四子棋”游戏。在这款游戏中，两个玩家轮流放置红色或黄色的棋子，在垂直、水平或对角线方向上取得四个相邻的棋子即可获胜。

以下是该游戏的Java源代码：

```java

import java.util.Scanner;

public class ConnectFour {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

char[][] board = new char[6][7];

int count = 0;

boolean gameover = false;

//初始化游戏面板

for (int i = 0; i < 6; i++) {

for (int j = 0; j < 7; j++) {

board[i][j] = ' ';

}

}

//游戏循环开始

while (!gameover) {

//打印游戏面板

System.out.println(" 1 2 3 4 5 6 7");

System.out.println("---------------");

for (int i = 0; i < 6; i++) {

for (int j = 0; j < 7; j++) {

System.out.print("|" + board[i][j]);

}

System.out.println("|");

System.out.println("---------------");

}

//提示下棋玩家的编号

int player = count % 2 + 1;

System.out.println("Player " + player + ", please enter a column number (1-7) to drop your piece:");

//输入下棋列号

int col = sc.nextInt() - 1;

//将棋子放入相应的位置

for (int i = 5; i >= 0; i--) {

if (board[i][col] == ' ') {

if (player == 1) {

board[i][col] = 'R';

} else {

board[i][col] = 'Y';

}

break;

}

}

//检查是否有玩家获胜

gameover = checkWin(board);

//如果游戏结束，打印结果

if (gameover) {

System.out.println(" 1 2 3 4 5 6 7");

System.out.println("---------------");

for (int i = 0; i < 6; i++) {

for (int j = 0; j < 7; j++) {

System.out.print("|" + board[i][j]);

}

System.out.println("|");

System.out.println("---------------");

}

System.out.println("Congratulations! Player " + player + " wins!");

}

//如果没人获胜，增加计数器

count++;

}

}

//检查是否有玩家获胜的方法

private static boolean checkWin(char[][] board) {

//水平方向

for (int i = 0; i < 6; i++) {

for (int j = 0; j < 4; j++) {

if (board[i][j] == board[i][j + 1] && board[i][j] == board[i][j + 2]

&& board[i][j] == board[i][j + 3] && board[i][j] != ' ') {

return true;

}

}

}

//垂直方向

for (int i = 0; i < 3; i++) {

for (int j = 0; j < 7; j++) {

if (board[i][j] == board[i + 1][j] && board[i][j] == board[i + 2][j]

&& board[i][j] == board[i + 3][j] && board[i][j] != ' ') {

return true;

}

}

}

//对角线方向

for (int i = 0; i < 3; i++) {

for (int j = 0; j < 4; j++) {

if (board[i][j] == board[i + 1][j + 1] && board[i][j] == board[i + 2][j + 2]

&& board[i][j] == board[i + 3][j + 3] && board[i][j] != ' ') {

return true;

}

}

}

//反对角线方向

for (int i = 0; i < 3; i++) {

for (int j = 3; j < 7; j++) {

if (board[i][j] == board[i + 1][j - 1] && board[i][j] == board[i + 2][j - 2]

&& board[i][j] == board[i + 3][j - 3] && board[i][j] != ' ') {

return true;

}

}

}

return false;

}

}

```

2. “Snake Game”游戏源代码

“Snake Game”是一款经典的贪吃蛇游戏，玩家控制蛇在屏幕上移动并吃食物，随着蛇身越来越长，难度也逐渐增加。

以下是该游戏的Java源代码：

```java

import java.awt.Color;

import java.awt.Dimension;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.Point;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.util.ArrayList;

import java.util.Random;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.Timer;

public class SnakeGame implements ActionListener, KeyListener {

public static SnakeGame snake;

public JFrame jframe;

public JPanel jpanel;

public Timer timer = new Timer(20, this);

public ArrayList snakeParts = new ArrayList();

public static final int UP = 0, DOWN = 1, LEFT = 2, RIGHT = 3, SCALE = 10;

public int ticks = 0, direction = DOWN, score = 0, tailLength = 10, time;

public Point head, cherry;

public Random random;

public boolean gameOver = false;

//游戏入口

public SnakeGame() {

Dimension dim = new Dimension(600, 600);

jframe = new JFrame("Snake");

jframe.setVisible(true);

jframe.setSize(dim);

jframe.setResizable(false);

jframe.setLocationRelativeTo(null);

jframe.add(jpanel = new JPanel());

jpanel.setBackground(Color.BLACK);

jframe.addKeyListener(this);

startGame();

}

//初始化游戏

public void startGame() {

gameOver = false;

score = 0;

tailLength = 2;

time = 0;

direction = DOWN;

head = new Point(0, -1);

random = new Random();

snakeParts.clear();

cherry = new Point(random.nextInt(59), random.nextInt(59));

timer.start();

}

//游戏绘制

public void paintComponent(Graphics g) {

super.paintComponent(g);

g.setColor(Color.RED);

g.fillOval(cherry.x * SCALE, cherry.y * SCALE, SCALE, SCALE);

for (Point point : snakeParts) {

g.setColor(Color.GREEN);

g.fillRect(point.x * SCALE, point.y * SCALE, SCALE, SCALE);

}

//游戏结束

if (gameOver) {

g.setColor(Color.RED);

g.setFont(new Font("Comic Sans MS", Font.BOLD, 40));

g.drawString("Game Over!", 200, 300);

}

//显示得分

g.setColor(Color.WHITE);

g.setFont(new Font("Comic Sans MS", Font.PLAIN, 20));

g.drawString("Score: " + score, 10, 25);

//显示时间

g.setColor(Color.WHITE);

g.setFont(new Font("Comic Sans MS", Font.PLAIN, 20));

g.drawString("Time: " + time, 500, 25);

}

@Override

public void actionPerformed(ActionEvent arg0) {

jpanel.repaint();

ticks++;

//移动蛇的每个部分

if (ticks % 2 == 0 && head != null && !gameOver) {

time++;

snakeParts.add(new Point(head.x, head.y));

if (direction == UP) {

if (head.y - 1 >= 0 && noTailAt(head.x, head.y - 1)) {

head = new Point(head.x, head.y - 1);

} else {

gameOver = true;

}

}

if (direction == DOWN) {

if (head.y + 1 < 60 && noTailAt(head.x, head.y + 1)) {

head = new Point(head.x, head.y + 1);

} else {

gameOver = true;

}

}

if (direction == LEFT) {

if (head.x - 1 >= 0 && noTailAt(head.x - 1, head.y)) {

head = new Point(head.x - 1, head.y);

} else {

gameOver = true;

}

}

if (direction == RIGHT) {

if (head.x + 1 < 60 && noTailAt(head.x + 1, head.y)) {

head = new Point(head.x + 1, head.y);

} else {

gameOver = true;

}

}

//如果蛇吃到了食物，增加得分并生成新的食物

if (snakeParts.size() > tailLength) {

snakeParts.remove(0);

}

if (cherry != null) {

if (head.equals(cherry)) {

score += 10;

tailLength += 10;

cherry.setLocation(random.nextInt(59), random.nextInt(59));

}

}

}

}

//检查蛇尾是否与新位置重叠

public boolean noTailAt(int x, int y) {

for (Point point : snakeParts) {

if (point.equals(new Point(x, y))) {

return false;

}

}

return true;

}

//监听键盘方向键的按下事件

@Override

public void keyPressed(KeyEvent e) {

int i = e.getKeyCode();

if ((i == KeyEvent.VK_LEFT || i == KeyEvent.VK_A) && direction != RIGHT) {

direction = LEFT;

}

if ((i == KeyEvent.VK_RIGHT || i == KeyEvent.VK_D) && direction != LEFT) {

direction = RIGHT;

}

if ((i == KeyEvent.VK_UP || i == KeyEvent.VK_W) && direction != DOWN) {

direction = UP;

}

if ((i == KeyEvent.VK_DOWN || i == KeyEvent.VK_S) && direction != UP) {

direction = DOWN;

}

}

//未使用的接口方法

@Override

public void keyReleased(KeyEvent e) {

}

@Override

public void keyTyped(KeyEvent e) {

}

//主程序入口

public static void main(String[] args) {

snake = new SnakeGame();

}

}

```

总之，这两个Java小游戏源代码的分享，极大地方便了Java游戏开发人员的学习和实践，也是技术共享中的一个很好的例子。无论是刚刚开始学习Java编程的初学者，还是已经有一定Java编程基础的开发人员，都可以从中获益。