我尝试过使用invalidate（），validate（），revalidate（），repaint（），但我的JFrame仍然不会刷新或更新或更改。我正在使用Thread.sleep（）来添加一些延迟，但它不会工作。
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class GameOfLife implements MouseListener, ActionListener {
public final int MAX_X = 10;
public final int MAX_Y = 10;
int[][] matrix_old = new int[MAX_X+2][MAX_Y+2];
int[][] matrix_new = new int[MAX_X+2][MAX_Y+2];
JFrame mainFrame = new JFrame();
JPanel pnlheader = new JPanel();
JLabel lblheader = new JLabel("Game of Life",JLabel.CENTER);
JLabel lblmsg = new JLabel("Please place the cells:D",JLabel.CENTER);
JPanel pnlgrid = new JPanel(new GridLayout(10,10));
JButton btnstart = new JButton();
JButton[][] grid;
//------------------------------------------------------------------------
public void GameOfLife(){
mainFrame.setSize(600,500);
mainFrame.setLayout(new BorderLayout());
mainFrame.setLocationRelativeTo(null);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.getContentPane().setBackground(Color.WHITE);
pnlheader.setLayout(new GridLayout(2,1));
pnlheader.add(lblheader);
pnlheader.add(lblmsg);
pnlgrid.setLayout(new GridLayout(MAX_X,MAX_Y));
grid = new JButton[MAX_X+2][MAX_Y+2];
for(int x = 0 ; x < (MAX_X+2) ; x++){
for(int y = 0 ; y < (MAX_Y+2) ; y++){
grid[x][y] = new JButton(""+x+","+y+"");
matrix_old[x][y] = 0 ;
if(y != 0 && x != 0 && y != (MAX_Y+1) && x != (MAX_X+1)){
pnlgrid.add(grid[x][y]);
grid[x][y].setEnabled(false);
grid[x][y].addMouseListener(this);
}
}
}
btnstart.setText("Start Generation");
mainFrame.add(pnlheader,BorderLayout.NORTH);
mainFrame.add(pnlgrid,BorderLayout.CENTER);
mainFrame.add(btnstart,BorderLayout.SOUTH);
btnstart.addActionListener(this);
mainFrame.setVisible(true);
}//end GameOfLife
//------------------------------------------------------------------------
public void mouseClicked(MouseEvent e){
for(int x = 0 ; x < MAX_X+2 ; x++){
for(int y = 0 ; y < MAX_Y+2 ; y++){
if(e.getSource().equals(grid[x][y])){
if(grid[x][y].isEnabled() == false){
grid[x][y].setEnabled(true);
matrix_old[x][y] = 1;
}
else if(grid[x][y].isEnabled() == true){
grid[x][y].setEnabled(false);
matrix_old[x][y] = 0;
}
}//end if
}//end for
}//end for
}//end mouseClicked
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mousePressed(MouseEvent e){}
public void mouseReleased(MouseEvent e){}
//------------------------------------------------------------------------
public void actionPerformed(ActionEvent z){
if(z.getSource() == btnstart){
generation();
}
//------------------------------------------------------------------------
public void generation(){
try{
int checkerResult = 0;
for(int gene = 1 ; gene <= 10 ; gene++){ // number of generations
for(int rows = 0; rows < MAX_X+2 ; rows++){ //numer for row
for(int cols = 0 ; cols < MAX_Y+2 ; cols++ ){ //number for columns
if(matrix_old[rows][cols] == 1 && rows != 0 && cols != 0 && rows != (MAX_Y+1) && cols != (MAX_X+1) ){ // if there is a velue
checkerResult = checker(rows,cols);
if(checkerResult >=4 || checkerResult <=1 )
matrix_new[rows][cols]=0;
}//end if
else if(matrix_old[rows][cols] == 0 && rows != 0 && cols != 0 && rows != (MAX_Y+1) && cols != (MAX_X+1)){ // if there is a velue
checkerResult = checker(rows,cols);
if(checkerResult == 3)
matrix_new[rows][cols]=1;
}//end else if
}//end for
}//end for
exchangeValues();
animateButtons();
lblmsg.setText("Generation # " + gene);
try{
Thread.sleep(100);
}catch(Exception E){
JOptionPane.showMessageDialog(null, E);
}
mainFrame.setEnabled(false);
mainFrame.revalidate();
mainFrame.validate();
mainFrame.repaint();
mainFrame.setEnabled(true);
}//end for
}catch(Exception X){
JOptionPane.showMessageDialog(null, X);
}
}//end generation
//------------------------------------------------------------------------
public int checker(int rows, int cols){
int checkerResult = 0;
//above row
if(matrix_old[rows-1][cols-1]==1)
checkerResult++;
if(matrix_old[rows-1][cols]==1)
checkerResult++;
if(matrix_old[rows-1][cols+1]==1)
checkerResult++;
//same row
if(matrix_old[rows][cols-1]==1)
checkerResult++;
if(matrix_old[rows][cols+1]==1)
checkerResult++;
//below row
if(matrix_old[rows+1][cols-1]==1)
checkerResult++;
if(matrix_old[rows+1][cols]==1)
checkerResult++;
if(matrix_old[rows+1][cols+1]==1)
checkerResult++;
return checkerResult;
}
//------------------------------------------------------------------------
public void exchangeValues(){
for(int rows = 0 ; rows < MAX_X+2 ; rows++){
for(int cols = 0 ; cols < MAX_Y+2 ; cols++){
matrix_old[rows][cols] = matrix_new[rows][cols];
System.out.print(matrix_old[rows][cols]);
}
System.out.println("");
}
}
//------------------------------------------------------------------------
public void animateButtons(){
for(int rows = 0 ; rows < MAX_X+2 ; rows++){
for(int cols = 0 ; cols < MAX_Y+2 ; cols++){
if(matrix_new[rows][cols] == 1){
grid[rows][cols].setEnabled(true);
}
else if(matrix_new[rows][cols]== 0){
grid[rows][cols].setEnabled(false);
}
}
}
}
//------------------------------------------------------------------------
public static void main(String [] args){
GameOfLife start = new GameOfLife();
start.GameOfLife();
}// end main
}//end class2
答案 0 :(得分：1)
使用Swing Timer代替Thread.sleep（阻止EDT）。像这样的东西
ActionListener listener = new ActionListener(){
public void actionPerformed(ActionEvent e){
System.out.println("Hello");
}
}
int delay = 5000;
Timer timer = new Timer(delay, listener);
timer.setRepeats(false);
timer.start();