我是代码

public class Jframe extends JFrame implements KeyListener {
JButton[][] **s = new JButton[4][4]; // 定义二维数组来存储行列值
ArrayList<JButton> als = new ArrayList<JButton>(); // 创建一个集合来存储16个按钮
int i = 16; // 剩余方块数
int score = 0; // 分数
int num = 0; // 分数的一半
int l1, l2, l3, l4; // 定义标记
Random random = new Random(); // 定义一个随机数
private JPanel contentPane;
JButton button0;
JButton button1;
JButton button2;
JButton button3;
JButton button4;
JButton button5;
JButton button6;
JButton button7;
JButton button8;
JButton button9;
JButton button10;
JButton button11;
JButton button12;
JButton button13;
JButton button14;
JButton button15;
private JTextField textField;
JLabel lblTips;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Jframe frame = new Jframe();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* 窗口布局
*/
public Jframe() {
setTitle("2048");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 500, 550);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(null);
setContentPane(contentPane);
setResizable(false);
JLabel label = new JLabel("\u5206\u6570");
label.setBounds(348, 13, 30, 15);
contentPane.add(label);
button0 = new JButton("");
button0.setFont(new Font("楷体", Font.PLAIN, 30));
button0.setBounds(43, 57, 100, 100);
contentPane.add(button0);
button1 = new JButton("");
button1.setFont(new Font("楷体", Font.PLAIN, 30));
button1.setBounds(143, 57, 100, 100);
contentPane.add(button1);
button2 = new JButton("");
button2.setFont(new Font("楷体", Font.PLAIN, 30));
button2.setBounds(242, 57, 100, 100);
contentPane.add(button2);
button3 = new JButton("");
button3.setFont(new Font("楷体", Font.PLAIN, 30));
button3.setBounds(342, 57, 100, 100);
contentPane.add(button3);
button4 = new JButton("");
button4.setFont(new Font("楷体", Font.PLAIN, 30));
button4.setBounds(43, 158, 100, 100);
contentPane.add(button4);
button5 = new JButton("");
button5.setFont(new Font("楷体", Font.PLAIN, 30));
button5.setBounds(143, 158, 100, 100);
contentPane.add(button5);
button6 = new JButton("");
button6.setFont(new Font("楷体", Font.PLAIN, 30));
button6.setBounds(242, 158, 100, 100);
contentPane.add(button6);
button7 = new JButton("");
button7.setFont(new Font("楷体", Font.PLAIN, 30));
button7.setBounds(342, 158, 100, 100);
contentPane.add(button7);
button8 = new JButton("");
button8.setFont(new Font("楷体", Font.PLAIN, 30));
button8.setBounds(43, 259, 100, 100);
contentPane.add(button8);
button9 = new JButton("");
button9.setFont(new Font("楷体", Font.PLAIN, 30));
button9.setBounds(143, 259, 100, 100);
contentPane.add(button9);
button10 = new JButton("");
button10.setFont(new Font("楷体", Font.PLAIN, 30));
button10.setBounds(242, 259, 100, 100);
contentPane.add(button10);
button11 = new JButton("");
button11.setFont(new Font("楷体", Font.PLAIN, 30));
button11.setBounds(342, 259, 100, 100);
contentPane.add(button11);
button12 = new JButton("");
button12.setFont(new Font("楷体", Font.PLAIN, 30));
button12.setBounds(43, 360, 100, 100);
contentPane.add(button12);
button13 = new JButton("");
button13.setFont(new Font("楷体", Font.PLAIN, 30));
button13.setBounds(143, 360, 100, 100);
contentPane.add(button13);
button14 = new JButton("");
button14.setFont(new Font("楷体", Font.PLAIN, 30));
button14.setBounds(242, 360, 100, 100);
contentPane.add(button14);
button15 = new JButton("");
button15.setFont(new Font("楷体", Font.PLAIN, 30));
button15.setBounds(342, 360, 100, 100);
contentPane.add(button15);
textField = new JTextField();
textField.setEditable(false);
textField.setFont(new Font("楷体", Font.PLAIN, 15));
textField.setText("0");
textField.setBounds(376, 10, 66, 21);
contentPane.add(textField);
textField.setColumns(10);
lblTips = new JLabel("Tips:\u6309\u4E0A\u3001\u4E0B\u3001\u5DE6\u3001\u53F3\u8FDB\u884C\u6E38\u620F");
lblTips.setBounds(141, 470, 201, 15);
contentPane.add(lblTips);
this.Store();
this.Randomizer();
this.Randomizer();
textField.addKeyListener(this); // 注册键盘监听事件
}

public void Store() { // 将16个按钮存储到集合
als.add(button0);
als.add(button1);
als.add(button2);
als.add(button3);
als.add(button4);
als.add(button5);
als.add(button6);
als.add(button7);
als.add(button8);
als.add(button9);
als.add(button10);
als.add(button11);
als.add(button12);
als.add(button13);
als.add(button14);
als.add(button15);
for (int i = 0; i < als.size(); i++) { // 将集合中的16个按钮赋值给二维数组
**s[i / 4][i % 4] = als.get(i);
}
}
public void Randomizer() { // 随机生成2
boolean flag = true;
if (i > 0) {
while (flag) {
int num = random.nextInt(4);
int num1 = random.nextInt(4);
JButton ** = **s[num][num1]; // 获得随机按键位置
String str = **.getText(); // 获得该按钮的数字
if (str.equals("")) {
**.setText("2");
i--; // 成功创建一个2，则总数-1
l1 = l2 = l3 = l4 = 0;
break;
}
}
}
}
@Override
public void keyTyped(KeyEvent e) {
// TODO Auto-generated method stub
}
@Override
public void keyPressed(KeyEvent e) {
int code = e.getKeyCode();
// 向上
if (code == KeyEvent.VK_UP || code == KeyEvent.VK_W) {
for (int y = 1; y < 4; y++) { // Y轴
for (int x = 0; x < 4; x++) { // X轴
String str = **s[y][x].getText();
if (str.equals("")) { // 如果是空，则不需要动
continue;
}
for (int y1 = y - 1; y1 >= 0; y1--) {
String str1 = **s[y1][x].getText(); // 获取当前元素的上一个 元素
if (!str1.equals("")) { // 如果上一个元素不为空，则判定是否和自身相等
if (str1.equals(str)) { // 若两个元素相等，则合并
**s[y][x].setText(""); // 自身变成空
num = Integer.parseInt(str1);
score += num * 2; // 分数
textField.setText(String.valueOf(score));
**s[y1][x].setText(String.valueOf(num * 2)); // 合并后的值给上一位
i++; // 剩余方块总数+1
}
} else { // 如果上一个元素为空，则直接移动
**s[y][x].setText("");
**s[y1][x].setText(str);
}
}
}
}
l1 = 1;
Randomizer();
}

下面的我就不放了，反正是重复的，心累

就是我一按up或者w键，它就在随即位置上生成随机个数的2

简直就像我现在的不高兴表情，一会儿生成一个2，一会儿生成好几个2

求各位大佬教教我怎么改

求助啊！大佬们！

自己慢慢debug不就知道了吗，比问别人效率高多了