一个小型的图形界面三子棋java程序

import javax.swing.*; import java.awt.*; import java.awt.event.*; class Board extends Canvas{ private int cell,size; private int[][] chess; private Graphics gbuff; private int NumOfChessman=0; private final int O = 2, X=1; private boolean enable=false; public Board(int cell, int size){ this.cell = cell; this.size = size; chess = new int[size][size]; this.setSize(cell*size,cell*size); this.setBackground(Color.yellow); this.addMouseListener(new MouseHandler()); } public void paint(Graphics g){ for(int i=0; i<=size; i++){ g.setColor(Color.black); g.drawLine(0, cell*i, cell*size, cell*i); g.drawLine(cell*i, 0, cell*i, cell*size); } Font f = new Font("楷体",1,30); String msg = this.getPlayer()+"号选手下"; g.setColor(Color.GREEN); g.fillRect(0, cell*size, cell*size, cell); g.setColor(Color.black); g.setFont(f); g.drawString(msg,0,cell*size+30); } public void drawO(int line, int row){ gbuff = this.getGraphics(); int Line = line-1; int Row = row-1; chess[Line][Row] = O; gbuff.setColor(Color.blue); gbuff.drawOval(Line*cell, Row*cell, cell, cell); } public void drawX(int line, int row){ gbuff = this.getGraphics(); int Line = line-1; int Row = row-1; chess[Line][Row] = X; gbuff.setColor(Color.blue); gbuff.drawLine(Line*cell, Row*cell, line*cell, row*cell); gbuff.drawLine(Line*cell, row*cell, line*cell, Row*cell); } public int getPlayer(){ System.out.print(NumOfChessman%2); if(NumOfChessman%2==0) return X; else return O; } public void SetEnable(){ this.enable = true; } public boolean checkWin(int currentLine, int currentRow){ int i; for(i=0; i<size; i++) if(chess[currentLine][i]!=chess[currentLine][0]) break; if(i==size) return true; for(i=0; i<size; i++) if(chess[i][currentRow]!=chess[0][currentRow]) break; if(i==size) return true; for(i=0; i<size; i++) if(chess[i][i]!=chess[0][0] || chess[i][i]==0) break; if(i==size) return true; for(i=0; i<size; i++) if(chess[2-i][i]!=chess[2][0] ||chess[2-i][i]==0) break; if(i==size) return true; return false; } public void repaint(){ for(int i=0; i<size; i++) for(int j=0; j<size; j++){ if(chess[i][j]==O) this.drawO(i+1, j+1); else if(chess[i][j]==X) this.drawX(i+1, j+1); } Font f = new Font("楷体",1,30); String msg = this.getPlayer()+"号选手下"; gbuff.setColor(Color.GREEN); gbuff.fillRect(0, cell*size, cell*size, cell); gbuff.setColor(Color.black); gbuff.setFont(f); gbuff.drawString(msg,0,cell*size+30); } class MouseHandler implements MouseListener{ public void mouseClicked(MouseEvent e){ if(enable == false) return; int line = e.getX()/cell; int row = e.getY()/cell; if(chess[line][row]==O || chess[line][row]==X) return; if(NumOfChessman%2==0) chess[line][row]=X; else chess[line][row]=O; NumOfChessman++; repaint(); if(checkWin(line,row)){ enable = false; Font f = new Font("楷体",1,30); String msg = getPlayer()+"号选手胜"; gbuff.setColor(Color.GREEN); gbuff.fillRect(0, cell*size, cell*size, cell); gbuff.setColor(Color.black); gbuff.setFont(f); gbuff.drawString(msg,0,cell*size+30); } } public void mousePressed(MouseEvent e){} public void mouseReleased(MouseEvent e){} public void mouseEntered(MouseEvent e){} public void mouseExited(MouseEvent e){} } }