JavaFX应用程序冻结了,我不知道为什么
所以,我做了一个数独解算器作为一个项目。除了一件事外,这个解决方法很有效。当我在我知道不起作用的位置插入数字时,程序冻结并崩溃。我想我已经找到了问题所在,它似乎陷入了一个无限循环,但我不知道为什么 请记住,我是JavaFX新手 感谢您的帮助,提前谢谢 数独课JavaFX应用程序冻结了,我不知道为什么,java,user-interface,javafx,freeze,Java,User Interface,Javafx,Freeze,所以,我做了一个数独解算器作为一个项目。除了一件事外,这个解决方法很有效。当我在我知道不起作用的位置插入数字时,程序冻结并崩溃。我想我已经找到了问题所在,它似乎陷入了一个无限循环,但我不知道为什么 请记住,我是JavaFX新手 感谢您的帮助,提前谢谢 数独课 public class Sudoku { private int board[][]; public Sudoku(){ this.board = new int[9][9]; clear(); initBoa
public class Sudoku {
private int board[][];
public Sudoku(){
this.board = new int[9][9];
clear();
initBoard();
}
public void printBoard(){
for(int i = 0; i < 9; i++){
if((i % 3) == 0){
System.out.print("-------------------------" + "\n");
}
for(int n = 0; n <9; n++){
if((n % 3) == 0){
System.out.print("| ");
}
System.out.print(board[i][n] + " ");
}
System.out.print("|" + "\n");
}
System.out.print("-------------------------");
}
public int getValueAt(int col, int row){
return board[col][row];
}
public boolean solve(){
if(solve(0,0)){
return true;
}else{
clear();
return false;
}
}
public void clear(){
for( int row = 0; row < 9; row++ ){
for( int col = 0; col < 9; col++ ){
board[row][col] = 0 ;
}
}
}
public void setBoard(int input[][]){
clear();
board = input;
}
private void initBoard(){
clear();
//Rad 1
board[0][2] = 8;
board[0][5] = 8;
board[0][7] = 6;
board[0][8] = 2;
//Rad 2
board[1][8] = 5;
//Rad 3
board[2][0] = 1;
board[2][2] = 2;
board[2][3] = 5;
//Rad 4
board[3][3] = 2;
board[3][4] = 1;
board[3][7] = 9;
//Rad 5
board[4][1] = 5;
board[4][6] = 6;
//Rad 6
board[5][0] = 6;
board[5][7] = 2;
board[5][8] = 8;
//Rad 7
board[6][0] = 4;
board[6][1] = 1;
board[6][3] = 6;
board[6][5] = 8;
//Rad 8
board[7][0] = 8;
board[7][1] = 6;
board[7][4] = 3;
board[7][6] = 1;
//Rad 9
board[8][6] = 4;
}
private boolean solve(int i, int j){
//Ifall en lösning har hittats
if(i > 8){
return true;
}
//Ifall positionen inte är satt
if(board[i][j] != 0){
//next(i, j);
if(j < 8){
if(solve(i, j+1)){
return true;
}
}else{
if(solve(i+1, 0)){
return true;
}
}
}
//Ifall positionen är satt
else{
for(int n = 1; n < 10; n++){
//Kollar ifall siffran "n" inte finns på någon av raderna
if(rowIsOk(i, n) && colIsOk(j, n) && boxIsOk(i, j ,n)){
board[i][j] = n;
//next(i, j);
if(j < 8){
if(solve(i, j+1)){
return true;
}
}else{
if(solve(i+1, 0)){
return true;
}
}
}
}
board[i][j] = 0;
}
//board[i][j] = 0;
return false;
}
//Kollar om raden är ok
private boolean rowIsOk(int row, int num){
for(int i = 0; i < 9; i++){
if(board[row][i] == num){
return false;
}
}
return true;
}
//Kollar om kolumnen är ok
private boolean colIsOk(int col, int num){
for(int i = 0; i < 9; i++){
if(board[i][col] == num){
return false;
}
}
return true;
}
private boolean boxIsOk(int row, int col, int num){
row = (row/3) * 3;
col = (col/3) * 3;
for(int r = 0; r < 3; r++){
for(int c = 0; c < 3; c++){
if(board[row+r][col+c] == num){
return false;
}
}
}
return true;
}
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.TilePane;
import javafx.stage.Stage;
public class SudokuGUI extends Application{
private Sudoku sudoku = new Sudoku();
private TilePane board;
public static void main(String[] args){
launch(args);
}
@Override
public void start(Stage primaryStage){
primaryStage.setTitle("Sudoku Solver: H4xx0r Edition");
BorderPane root = new BorderPane();
board = initBoard();
HBox control = addControl();
root.setCenter(board);
root.setBottom(control);
primaryStage.setScene(new Scene(root, 500, 500));
primaryStage.show();
}
private void updateBoard(TilePane tile){
tile.getChildren().clear();
for(int col = 0; col < 9; col++){
for(int row = 0; row < 9; row++){
tile.getChildren().add(createCell(col, row));
}
}
}
private TilePane initBoard(){
TilePane tile = new TilePane();
tile.setHgap(4);
tile.setVgap(4);
tile.setPadding(new Insets(0, 10, 0, 10));
tile.setPrefColumns(9);
tile.setPrefRows(9);
//tile.setStyle("-fx-background-color: rgba(255, 215, 0, 0.1);");
tile.setAlignment(Pos.CENTER);
tile.getChildren().clear();
for(int col = 0; col < 9; col++){
for(int row = 0; row < 9; row++){
tile.getChildren().add(createCell(col, row));
}
}
return tile;
}
//Skapar "celler" med textfält
private TextField createCell(int col, int row){
TextField txtfield = new TextField();
String text;
if(sudoku.getValueAt(col, row) != 0){
text = Integer.toString(sudoku.getValueAt(col, row));
}else{
text = "0";
}
txtfield.setText(text);
txtfield.setPrefWidth(45);
txtfield.setPrefHeight(45);
txtfield.setAlignment(Pos.CENTER);
//txtfield.setEditable(false);
txtfield.setStyle("-fx-font-weight: bold;");
if(((row < 6 && row > 2) && (col < 6 && col > 2))
|| ((row < 3) && (col < 3)) //Vänster Upp
|| ((row < 3) && (col > 5)) //Höger Upp
|| ((row > 5) && (col > 5)) //Höger Ner
|| ((row > 5) && (col < 3)))//Vänster Ner
{
txtfield.setStyle("-fx-background-color: rgba(255, 178, 0, 0.9);" + "-fx-font-weight: bold;");
}
return txtfield;
}
//LÄgger till knappar i en Box
private HBox addControl(){
HBox hbox = new HBox();
Button solve = new Button("Solve");
Button clear = new Button("Clear");
Button set = new Button("Set");
hbox.setPadding(new Insets(15, 12, 15, 12));
hbox.setSpacing(10);
hbox.setAlignment(Pos.BOTTOM_CENTER);
solve.setPrefSize(100, 20);
solve.setOnAction(e -> solve());
clear.setPrefSize(100, 20);
clear.setOnAction(e -> clear());
set.setPrefSize(100, 20);
set.setOnAction(e -> set());
hbox.getChildren().addAll(solve, clear, set);
return hbox;
}
//Knapp-funktioner
private void solve(){
if(sudoku.solve()){
updateBoard(board);
}else{
sudoku.clear();
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("YOLO SWAGGINS");
alert.setHeaderText("Sudokut SWAG ERROR");
alert.setContentText("Sudokut har inte tillräckligt med SWAG");
}
}
//Hämtar värden från textfälten
private void set(){
int newset[][] = new int[9][9];
int array[] = new int[board.getChildren().size()];
for(int i = 0; i < board.getChildren().size(); i++){
TextField tmp = (TextField) board.getChildren().get(i);
//System.out.println(tmp.getText());
array[i] = Integer.parseInt(tmp.getText());
}
int n = 0;
for(int col = 0; col < 9; col++){
for(int row = 0; row < 9; row++){
newset[col][row] = array[n];
n++;
}
}
sudoku.setBoard(newset);
updateBoard(board);
}
private void clear(){
sudoku.clear();
updateBoard(board);
}
公共级数独{
私人国际董事会[][];
公共数独{
this.board=新整数[9][9];
清除();
initBoard();
}
公共印制板(){
对于(int i=0;i<9;i++){
如果((i%3)==0){
系统输出打印(“---------------------------”+“\n”);
}
对于(int n=0;n 8){
返回true;
}
//I所有位置均为内部satt
如果(板[i][j]!=0){
//其次(i,j);
if(j<8){
if(求(i,j+1)){
返回true;
}
}否则{
if(求解(i+1,0)){
返回true;
}
}
}
//I所有位置均为安全状态
否则{
对于(int n=1;n<10;n++){
//Kollar ifall siffran“n”inte finns pånågon av raderna
if(罗维索克(i,n)和科里索克(j,n)和博克西索克(i,j,n)){
板[i][j]=n;
//其次(i,j);
if(j<8){
if(求(i,j+1)){
返回true;
}
}否则{
if(求解(i+1,0)){
返回true;
}
}
}
}
板[i][j]=0;
}
//板[i][j]=0;
返回false;
}
//Kollar om radenär ok
私有布尔行(int行,int num){
对于(int i=0;i<9;i++){
如果(板[行][i]==num){
返回false;
}
}
返回true;
}
//Kollar om kolumnenär ok
私有布尔colIsOk(int col,int num){
对于(int i=0;i<9;i++){
如果(板[i][col]==num){
返回false;
}
}
返回true;
}
专用布尔boxIsOk(int行、int列、int num){
行=(行/3)*3;
col=(col/3)*3;
对于(int r=0;r<3;r++){
对于(int c=0;c<3;c++){
如果(线路板[row+r][col+c]==num){
返回false;
}
}
}
返回true;
}
}
GUI类
public class Sudoku {
private int board[][];
public Sudoku(){
this.board = new int[9][9];
clear();
initBoard();
}
public void printBoard(){
for(int i = 0; i < 9; i++){
if((i % 3) == 0){
System.out.print("-------------------------" + "\n");
}
for(int n = 0; n <9; n++){
if((n % 3) == 0){
System.out.print("| ");
}
System.out.print(board[i][n] + " ");
}
System.out.print("|" + "\n");
}
System.out.print("-------------------------");
}
public int getValueAt(int col, int row){
return board[col][row];
}
public boolean solve(){
if(solve(0,0)){
return true;
}else{
clear();
return false;
}
}
public void clear(){
for( int row = 0; row < 9; row++ ){
for( int col = 0; col < 9; col++ ){
board[row][col] = 0 ;
}
}
}
public void setBoard(int input[][]){
clear();
board = input;
}
private void initBoard(){
clear();
//Rad 1
board[0][2] = 8;
board[0][5] = 8;
board[0][7] = 6;
board[0][8] = 2;
//Rad 2
board[1][8] = 5;
//Rad 3
board[2][0] = 1;
board[2][2] = 2;
board[2][3] = 5;
//Rad 4
board[3][3] = 2;
board[3][4] = 1;
board[3][7] = 9;
//Rad 5
board[4][1] = 5;
board[4][6] = 6;
//Rad 6
board[5][0] = 6;
board[5][7] = 2;
board[5][8] = 8;
//Rad 7
board[6][0] = 4;
board[6][1] = 1;
board[6][3] = 6;
board[6][5] = 8;
//Rad 8
board[7][0] = 8;
board[7][1] = 6;
board[7][4] = 3;
board[7][6] = 1;
//Rad 9
board[8][6] = 4;
}
private boolean solve(int i, int j){
//Ifall en lösning har hittats
if(i > 8){
return true;
}
//Ifall positionen inte är satt
if(board[i][j] != 0){
//next(i, j);
if(j < 8){
if(solve(i, j+1)){
return true;
}
}else{
if(solve(i+1, 0)){
return true;
}
}
}
//Ifall positionen är satt
else{
for(int n = 1; n < 10; n++){
//Kollar ifall siffran "n" inte finns på någon av raderna
if(rowIsOk(i, n) && colIsOk(j, n) && boxIsOk(i, j ,n)){
board[i][j] = n;
//next(i, j);
if(j < 8){
if(solve(i, j+1)){
return true;
}
}else{
if(solve(i+1, 0)){
return true;
}
}
}
}
board[i][j] = 0;
}
//board[i][j] = 0;
return false;
}
//Kollar om raden är ok
private boolean rowIsOk(int row, int num){
for(int i = 0; i < 9; i++){
if(board[row][i] == num){
return false;
}
}
return true;
}
//Kollar om kolumnen är ok
private boolean colIsOk(int col, int num){
for(int i = 0; i < 9; i++){
if(board[i][col] == num){
return false;
}
}
return true;
}
private boolean boxIsOk(int row, int col, int num){
row = (row/3) * 3;
col = (col/3) * 3;
for(int r = 0; r < 3; r++){
for(int c = 0; c < 3; c++){
if(board[row+r][col+c] == num){
return false;
}
}
}
return true;
}
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.TilePane;
import javafx.stage.Stage;
public class SudokuGUI extends Application{
private Sudoku sudoku = new Sudoku();
private TilePane board;
public static void main(String[] args){
launch(args);
}
@Override
public void start(Stage primaryStage){
primaryStage.setTitle("Sudoku Solver: H4xx0r Edition");
BorderPane root = new BorderPane();
board = initBoard();
HBox control = addControl();
root.setCenter(board);
root.setBottom(control);
primaryStage.setScene(new Scene(root, 500, 500));
primaryStage.show();
}
private void updateBoard(TilePane tile){
tile.getChildren().clear();
for(int col = 0; col < 9; col++){
for(int row = 0; row < 9; row++){
tile.getChildren().add(createCell(col, row));
}
}
}
private TilePane initBoard(){
TilePane tile = new TilePane();
tile.setHgap(4);
tile.setVgap(4);
tile.setPadding(new Insets(0, 10, 0, 10));
tile.setPrefColumns(9);
tile.setPrefRows(9);
//tile.setStyle("-fx-background-color: rgba(255, 215, 0, 0.1);");
tile.setAlignment(Pos.CENTER);
tile.getChildren().clear();
for(int col = 0; col < 9; col++){
for(int row = 0; row < 9; row++){
tile.getChildren().add(createCell(col, row));
}
}
return tile;
}
//Skapar "celler" med textfält
private TextField createCell(int col, int row){
TextField txtfield = new TextField();
String text;
if(sudoku.getValueAt(col, row) != 0){
text = Integer.toString(sudoku.getValueAt(col, row));
}else{
text = "0";
}
txtfield.setText(text);
txtfield.setPrefWidth(45);
txtfield.setPrefHeight(45);
txtfield.setAlignment(Pos.CENTER);
//txtfield.setEditable(false);
txtfield.setStyle("-fx-font-weight: bold;");
if(((row < 6 && row > 2) && (col < 6 && col > 2))
|| ((row < 3) && (col < 3)) //Vänster Upp
|| ((row < 3) && (col > 5)) //Höger Upp
|| ((row > 5) && (col > 5)) //Höger Ner
|| ((row > 5) && (col < 3)))//Vänster Ner
{
txtfield.setStyle("-fx-background-color: rgba(255, 178, 0, 0.9);" + "-fx-font-weight: bold;");
}
return txtfield;
}
//LÄgger till knappar i en Box
private HBox addControl(){
HBox hbox = new HBox();
Button solve = new Button("Solve");
Button clear = new Button("Clear");
Button set = new Button("Set");
hbox.setPadding(new Insets(15, 12, 15, 12));
hbox.setSpacing(10);
hbox.setAlignment(Pos.BOTTOM_CENTER);
solve.setPrefSize(100, 20);
solve.setOnAction(e -> solve());
clear.setPrefSize(100, 20);
clear.setOnAction(e -> clear());
set.setPrefSize(100, 20);
set.setOnAction(e -> set());
hbox.getChildren().addAll(solve, clear, set);
return hbox;
}
//Knapp-funktioner
private void solve(){
if(sudoku.solve()){
updateBoard(board);
}else{
sudoku.clear();
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("YOLO SWAGGINS");
alert.setHeaderText("Sudokut SWAG ERROR");
alert.setContentText("Sudokut har inte tillräckligt med SWAG");
}
}
//Hämtar värden från textfälten
private void set(){
int newset[][] = new int[9][9];
int array[] = new int[board.getChildren().size()];
for(int i = 0; i < board.getChildren().size(); i++){
TextField tmp = (TextField) board.getChildren().get(i);
//System.out.println(tmp.getText());
array[i] = Integer.parseInt(tmp.getText());
}
int n = 0;
for(int col = 0; col < 9; col++){
for(int row = 0; row < 9; row++){
newset[col][row] = array[n];
n++;
}
}
sudoku.setBoard(newset);
updateBoard(board);
}
private void clear(){
sudoku.clear();
updateBoard(board);
}
导入javafx.application.application;
导入javafx.geometry.Insets;
导入javafx.geometry.Pos;
导入javafx.scene.scene;
导入javafx.scene.control.Alert;
导入javafx.scene.control.Alert.AlertType;
导入javafx.scene.control.Button;
导入javafx.scene.control.TextField;
导入javafx.scene.layout.BorderPane;
导入javafx.scene.layout.HBox;
导入javafx.scene.layout.TilePane;
导入javafx.stage.stage;
公共类SudokuGUI扩展了应用程序{
私人数独=新数独();
私人瓷砖板;
公共静态void main(字符串[]args){
发射(args);
}
@凌驾
公共无效开始(阶段primaryStage){
setTitle(“数独解算器:H4xx0r版”);
BorderPane根=新的BorderPane();
board=initBoard();
HBox control=addControl();
根。设置中心(板);
根。根(对照);
原始阶段。设置场景(新场景(根,500500));
primaryStage.show();
}
专用空心更新板(瓷砖板瓷砖){
tile.getChildren().clear();
for(int col=0;col<9;col++){
对于(int行=0;行<9;行++){
tile.getChildren().add(createCell(col,row));
}
}
}
私人TilePane initBoard(){
TilePane瓷砖=新的TilePane();
地砖.地砖(4);
瓷砖。设置间隙(4);
瓦片填充(新插图(0,10,0,10));
瓦片。设置预处理列(9);
瓷砖。设置预排(9);
//tile.setStyle(“-fx背景色:rgba(255,215,0,0.1);”);
瓷砖设置对齐(位置中心);
tile.getChildren().clear();
for(int col=0;col<9;col++){
对于(int行=0;行<9;行++){
tile.getChildren().add(createCell(col,row));
}
}
返回瓷砖;
}
//斯卡帕“celler”med textfält
私有文本字段createCell(整数列,整数行){
TextField txtfield=新建TextField();
字符串文本;
if(数独.getValueAt(列,行)!=0){
text=Integer.toString(sudoku.getValueAt(col,row));
}否则{
text=“0”;
}
txtfield.setText(文本);
txtfield.setPrefWidth(45);
txtfield.setPrefHeight(45);
txtfield.setAlignment(位置中心);
//txtfield.setEditable(false);
txtfield.setStyle(“-fx字体大小:粗体;”);
如果((第6行和第2行)和第6列和第2列))
||(第三行和第三列)//Vänster Upp
||((第三行)和(第五列))//Höger Upp
||((行>5)和&(列>5))//Höger-Ner
||((行>5)和&(列<3))//Vänster Ner
{
setStyle(“-fx背景色:rgba(255178,0,0.9)”;“+”-fx字体重量:粗体;”;
}
返回txtfield;
}
//拉格直到克纳帕在箱子里
专用HBox addControl(){
HBox HBox=新的HBox();
按钮解算=新按钮(“解算”);
按钮清除=新按钮(“清除”);
按钮组=新按钮(“组”);
hbox.设置填充(新插图(15,12,15,12));
hbox.setspace(10);
hbox.设置校准(位置底部\中心);
solve.setPrefSize(100,20);
setOnAction(e->solve());
清除.setPrefSize(100,20);
clear.setOnAction(e->clear());
set.setPrefSize(100,20);
set.setOnAction(e->set());
hbox.getChildren().addAll(求解、清除、设置);
返回hbox;
}
//克纳普风琴
私有void solve(){
if(sudoku.solve()){
更新板(板);
}否则{
数独;
Alert Alert=新警报(AlertType.ERROR);
警报。设置标题(“YOLO SWAGGINS”);
alert.setHeaderText(“Sudokut SWAG错误”);
alert.setContentText(“Sudokut har inte