mainform.java

数独求解器 可以快速求解数独。 bug:不支持无解数独

/*
* @author: [e-mail]
* Copyright: NJUSoftware 2009
*/
import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
public class mainForm extends JFrame{
    public int[] num=new int[82];
	private static final long serialVersionUID = -8610433282926880253L;
	/**
	 * 
	 */

	//private boolean focused=false;
	private JTextField[] textBoxes=new JTextField[81];
	public mainForm(String title){
		this.setTitle(title);
	}
	private void init(){
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
		JPanel txtPanel =new JPanel(new GridLayout(9,9,5,5));
		//Container frame=getContentPane();
		this.add(txtPanel);
		this.setLayout(null);
		txtPanel.setBounds(25, 40, 300, 300);

		for(int ix=0;ix<81;ix++)
		{
			JTextField newTextBox=new JTextField(2);
			newTextBox.setHorizontalAlignment(JTextField.CENTER);
			newTextBox.setFont(new Font("宋体",23, 23));
			newTextBox.addKeyListener(new TextBoxEvent(newTextBox));
			newTextBox.addFocusListener(new TextBoxFocusEvent(newTextBox));
			txtPanel.add(newTextBox);
			newTextBox.setName(Integer.toString(ix));
			textBoxes[ix]=newTextBox;
		}
		JLabel label1=new JLabel("请输入要求解的数独.");
		label1.setFont(new Font("宋体",15,20));
		label1.setForeground(Color.BLUE );
		label1.setBounds(20,5,200,30);
		this.add(label1);
		JLabel label2=new JLabel("Copyright NJUSoftware 2009    Author: Abraham");
		label2.setFont(new Font("Times new roman",15,16));
		label2.setForeground(Color.BLUE );
		label2.setBounds(20,390,350,30);
		this.add(label2);
		JButton buttonOK=new JButton("计算");
		buttonOK.setBounds(60,350,70,30);
		buttonOK.addActionListener(new buttonEvent("calc"));
		JButton buttonExit =new JButton("退出");
		buttonExit.addActionListener(new buttonEvent("exit"));
		buttonExit.setBounds(200,350,70,30);
		this.add(buttonExit);
		this.add(buttonOK);
		this.setSize(350,450);
		this.setResizable(false);
    	this.setLocation(new Point(300,200));
    	this.setVisible(true);
	}
	public static void main(String[] args){
		mainForm myWindow=new mainForm("数独求解器");
		myWindow.init();
	}
	private class buttonEvent implements ActionListener{
		private String _name;
		public buttonEvent(String name){
			_name=name;
		}
		@Override
		public void actionPerformed(ActionEvent arg0) {
			// TODO Auto-generated method stub
			if(_name=="exit")
				System.exit(0);
			else if(_name=="calc"){
				boolean suc=calcSoduku();
				if (suc==false)
					JOptionPane.showMessageDialog(null, "数独无解，请重新输入！");
				else{
					for(int ix=0;ix<81;ix++){
						textBoxes[ix].setText(Integer.toString(num[ix+1]));
					}
				}
			}
			//	calcSudoku();
		}
		
	}
	private boolean calcSoduku(){
		for(int ix=0;ix<81;ix++){
			String tmp=textBoxes[ix].getText();
			if(tmp.isEmpty()==true)
				tmp="0";
			num[ix+1]=Integer.parseInt(tmp);
		}
		ShuDu newShudu=new ShuDu(num);
		boolean success=newShudu.calcSoduku();
		return success;
	}
	private class TextBoxEvent implements KeyListener{
		private JTextField _source;
		public TextBoxEvent(JTextField source){
			_source=source;
		}
		public void keyPressed(KeyEvent e) {
			if(e.getKeyCode()==KeyEvent.VK_LEFT){
				int index=Integer.parseInt(_source.getName());
				int newIndex;
				if(index==0)
					newIndex=80;
				else
					newIndex=index-1;
				textBoxes[newIndex].grabFocus();;
			}
			else if(e.getKeyCode()==KeyEvent.VK_RIGHT){
				int index=Integer.parseInt(_source.getName());
				int newIndex;
				if(index==80)
					newIndex=1;
				else
					newIndex=index+1;
				textBoxes[newIndex].grabFocus();;
			}
		}

		public void keyReleased(KeyEvent arg0) {
		
		}

		public void keyTyped(KeyEvent e) {
			if(_source.getText().length()>0){
				if(_source.getSelectedText()==null){
					e.consume();
					Toolkit.getDefaultToolkit().beep();
				}
			}
			if(e.getKeyChar()<'0'|| e.getKeyChar()>'9'){
				e.consume();
				Toolkit.getDefaultToolkit().beep();
			}	
		}
	}
	private class TextBoxFocusEvent implements FocusListener{
		private JTextField _source;
		public TextBoxFocusEvent(JTextField source){
			_source=source;
		}
		public void focusGained(FocusEvent arg0) {
			_source.setSelectionStart(0);
			_source.setSelectionEnd(1);
		}

		public void focusLost(FocusEvent arg0) {
			if(_source.getText().isEmpty())
				_source.setText("0");
		}
		
	}
}