我一直在编写一个数独游戏程序，但我似乎无法使某些按钮正常工作。这是我创建显示的代码
import java.awt.*;
import java.awt.event.*;
import javax.swing.JPanel;
public class Display extends JPanel implements ActionListener {
private static final long serialVersionUID = 1L;
private int dispWidth = 557;
private int dispHeight = 580;
private int buttonWidth = 200;
private final Color MY_GREEN = new Color(0, 153, 0);
private final Color MY_BLUE = new Color(0, 102, 204);
private final Color MY_PURPLE = new Color(148, 0, 211);
public Display() {
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m) {
selectNumber(m.getX(), m.getY());
}
});
this.setLayout(new BorderLayout());
JPanel button = new JPanel(); // Button panel
button.setPreferredSize(new Dimension(buttonWidth, dispHeight));
button.setBackground(MY_GREEN);
FlowLayout flowLayout = new FlowLayout();
flowLayout.setVgap(55); // Creates symetry
flowLayout.setHgap(100); // See above
button.setLayout(flowLayout);
Buttons enter = new Buttons("Enter Your Own", "enter");
enter.addActionListener(this);
button.add(enter);
Buttons startHard = new Buttons("Start - Hard", "startHard");
startHard.addActionListener(this);
button.add(startHard);
Buttons startMedium = new Buttons("Start - Medium", "startMedium");
startMedium.addActionListener(this);
button.add(startMedium);
Buttons startEasy = new Buttons("Start - Easy", "startEasy");
startEasy.addActionListener(this);
button.add(startEasy);
Buttons goBack = new Buttons("Go Back One", "goBack");
goBack.addActionListener(this);
button.add(goBack);
Buttons solve = new Buttons("Solve It", "solve");
solve.addActionListener(this);
button.add(solve);
this.add(button, BorderLayout.WEST); // Adds the button panel to the general display panel
}
private void selectNumber(int x, int y) {
int numPos[] = {3,63,124,187,248,309,372,433,494};
final byte SPACING = 19; // For spacing the numbers out evenly
if(x < buttonWidth + numPos[0])
return; // Returns nothing if it's not in the sudoku playing area
x -= buttonWidth - numPos[0];
byte count; // For use in loops
byte xPos = 0;
for(count = 0; count < 9; count++) { // Finds x position
if(x > numPos[count])
xPos = count;
}
byte yPos = 0;
for(count = 0; count < 9; count++) { // Finds y position
if(y > numPos[count])
yPos = count;
}
byte position = (byte) (xPos + yPos*9); // The number position of 0-80
byte xNum = 0;
x -= numPos[xPos];
for(count = 0; count < 3; count++) {
if(x > SPACING * count)
xNum = count;
}
byte yNum = 0;
y -= numPos[yPos];
for(count = 0; count < 3; count++) {
if(y > SPACING * count)
yNum = count;
}
byte number = (byte) (xNum + yNum*3);
MyGame.i = (byte) Methods.select(MyGame.b, number, position, MyGame.i);
repaint(buttonWidth, 0, dispWidth, dispHeight); // Redraws the board
}
public Dimension getPreferredSize() {
return new Dimension(dispWidth + buttonWidth, dispHeight);
}
protected void paintComponent(Graphics g) {
final byte FOOT = 24;
final byte NUM_X = 11;
final byte NUM_Y = 54;
final byte BLANK_SIZE = 59;
final byte PENCIL_X = 4;
final byte PENCIL_Y = 18;
final byte S_PENCIL_X = 20;
final byte S_PENCIL_Y = 19;
final int FOOT_MESSAGE_X = 96;
final int FOOT_MESSAGE_Y = 574;
final int FOOT_NUMBER_X = 211;
final int FOOT_NUMBER_Y = 574;
int BigLines[] = {0, 184, 369, 554, 577};
int SmallLines[] = {62, 123, 247, 308, 432, 493};
int numPos[] = {3, 63, 124, 187, 248, 309, 372, 433, 494};
Font selected = new Font("Arial", Font.ROMAN_BASELINE, 70);
Font foot = new Font("Arial", Font.ROMAN_BASELINE, 20);
Font pencil = new Font("Arial", Font.ROMAN_BASELINE, 20);
super.paintComponent(g); //paint the component's JPanel
g.setColor(MY_BLUE);
g.setFont(pencil);
byte count;
for(count = 0; count < 5; count++)
g.fillRect(0, BigLines[count], dispWidth + buttonWidth, 3);
for(count = 0; count < 6; count++)
g.drawLine(0, SmallLines[count], dispWidth + buttonWidth, SmallLines[count]);
g.fillRect(BigLines[0] + buttonWidth , 0, 3, dispHeight);
g.fillRect(BigLines[1] + buttonWidth , 0, 3, dispHeight - FOOT);
g.fillRect(BigLines[2] + buttonWidth , 0, 3, dispHeight - FOOT);
g.fillRect(BigLines[3] + buttonWidth , 0, 3, dispHeight);
for(count = 0; count < 6; count++)
g.drawLine(SmallLines[count] + buttonWidth, 0, SmallLines[count] + buttonWidth, dispHeight -FOOT);
g.setFont(foot);
g.drawString("This is Step in the Sudoku Solution", FOOT_MESSAGE_X + buttonWidth, FOOT_MESSAGE_Y);
g.drawString(String.valueOf(MyGame.i), FOOT_NUMBER_X + buttonWidth, FOOT_NUMBER_Y);
byte numCount;
for(numCount = 0; numCount < 81; numCount++) {
g.setColor(MY_BLUE);
byte zeros = 0;
byte outerCount;
for(outerCount = 0; outerCount < 3; outerCount++) {
for(count = 0; count < 3; count++) {
byte pencilnumber = MyGame.b[count + outerCount*3 + numCount*9][ MyGame.i];
if(pencilnumber > 0) {
if(pencilnumber < 10) {
g.setFont(pencil);
g.drawString(String.valueOf(pencilnumber ), numPos[numCount % 9] + (count*S_PENCIL_X) + PENCIL_X + buttonWidth, numPos[numCount / 9] + outerCount * S_PENCIL_Y + PENCIL_Y);
} else {
g.setFont(selected);
g.drawString(String.valueOf(pencilnumber - 10), numPos[numCount % 9] + buttonWidth + NUM_X, numPos[numCount / 9] + NUM_Y);
}
}
else
zeros += 1;
}
}
if(zeros == 9) {
g.setColor(MY_PURPLE);
g.fillRect(numPos[numCount%9] + buttonWidth, numPos[numCount/9], BLANK_SIZE, BLANK_SIZE);
}
}
}
public void actionPerformed(ActionEvent a) {
if (a.getActionCommand() == "enter")
MyGame.i = 0;
else if (a.getActionCommand() == "startHard") {
Methods.testBoard(MyGame.b, (byte) 0);
MyGame.i = 20;
} else if (a.getActionCommand() == "startMedium") {
Methods.testBoard(MyGame.b, (byte) 0);
MyGame.i = 35;
} else if (a.getActionCommand() == "startEasy") {
Methods.testBoard(MyGame.b, (byte) 0);
MyGame.i = 50;
} else if (a.getActionCommand() == "solve")
Methods.testBoard(MyGame.b, MyGame.i);
else if (a.getActionCommand() == "goBack") {
if (MyGame.i > 0)
MyGame.i -= 1;
}
repaint(buttonWidth, 0, dispWidth, dispHeight);
}
}
这是显示器背后的方法
import java.util.*;
public class Methods{
public static void startGame(byte[][] b) { // Places 1-9 in 81 spots to help create the board
for (int q = 0; q < 729; q++)
b[q][0] = (byte) (1 + (q%9));
}
public static void testBoard(byte[][] b, byte start) { // Creates the board to be played upon
Random r = new Random();
byte i = start;
int numOfTrys = 0;
do { // Keep going until there's a full board
numOfTrys += 1;
boolean blanks = true;
i = start;
while((i < 81) && (blanks)) { // Generates numbers to be run
byte num = (byte) r.nextInt(9); // Gets an int from 0 to 8
byte pos = (byte) r.nextInt(81); // Gets an into from 0 to 80
i = (byte) Methods.select(b, num, pos, i); // Determines if there's a i
boolean alone = false;
do { // Find any numbers that are alone
alone = false;
byte posCount; // For numbers 0 to 80
byte numCount; // For positions 0 to 8
for(posCount = 0; posCount < 81; posCount++) {
byte zeros = 0;
for(numCount = 0; numCount < 9; numCount++) {
if(b[posCount * 9 + numCount][i] == 0)
zeros += 1; // Adds one if the value is 0
else
num = (byte) (b[posCount * 9 + numCount][i] - 1);
if(zeros == 9)
blanks = false; // There's a dead end in the numbers (no number can be placed properly)
}
if((zeros == 8) && (num < 10)) {
i = (byte) Methods.select(b, num, pos, i);
alone = true;
}
}
} while(alone);
}
MyGame.i = i;
} while((i != 81) && (numOfTrys < 600)); // Should never need more than 600 or so... I hope
}
public static int select(byte[][] b, byte num, byte pos, byte i){
if((b[pos*9 + num][i] == 0) || (b[pos*9 + num][i] > 9))
return i;
i += 1;
int count = 0;
for(count = 0; count < 729; count++)
b[count][i] = b[count][i - 1]; // Copies existing value to the next spot
for(count = 0; count < 9; count++)
b[pos*9 + count][i] = 0;
byte row = (byte) (pos/9);
for(count = 0; count < 9; count++)
b[row * 81 + count * 9 + num][i] = 0; // For horizontal row
byte column = (byte) (pos%9);
for(count = 0; count < 9; count++)
b[column * 9 + count * 81 + num][i] = 0; // For vertical row
int rBlock = (pos/27)*243; // Block of 3 in a row
int cBlock = ((pos%9)/3)*27; // Block of 3 in a column
byte numCount;
for(numCount = 0; numCount < 3; numCount++) {
for(count = 0; count < 3; count++)
b[rBlock + cBlock + count * 9 + numCount * 81 + num][i] = 0; // Creates a block of 3x3
}
b[pos*9 + num][i] = (byte) (num + 11); // Selected value now from 11-19. This helps distinguish numbers already used.
return i;
}
}
用于输入您自己的解决方案并返回的按钮正在运行，但是用于启动简单，中等或难度游戏的按钮以及用于解决已经输入的按钮的按钮不是。我认为问题的根源是testBoard，因为这是在这些按钮的actionPerformed方法中唯一调用的，并且工作的两个按钮没有任何问题。 testBoard方法也调用select方法。任何帮助将不胜感激。
运行程序还需要三个其他文件，所以如果有人需要它们来帮助我，我非常愿意提供它们。非常感谢你！
答案 0 :(得分：0)
发现错误。在testBoard中第二次调用select时，变量应该是（b，num，column，i），而不是（b，num，pos，i）。编写程序的方式会将其发送到无限循环中，导致按钮无法正常工作。