import?java.util.*;
import?javax.swing.*;
import?java.awt.*;
import?java.awt.event.*;

/**
?*?界面對象
?*/
public?class?Calframe?extends?Jframe?{
	//?顯示計算結(jié)果的textField
	private?JTextField?textField?=?null;
	//?用一個數(shù)組保存MCMRMSM+等操作符
	private?String[]?mOp?=?{?“MC“?“MR“?“MS“?“M+“?};
	//?用一個數(shù)組保存結(jié)果操作符
	private?String[]?rOp?=?{?“←“?“CE“?“C“?};
	//?用一個數(shù)組保存數(shù)字與其它操作符
	private?String[]?nOp?=?{?“7“?“8“?“9“?“÷“?“√“?“4“?“5“?“6“?“ד
			“%“?“1“?“2“?“3“?“-“?“1/x“?“0“?“±“?“.“?“+“?“=“?};
	//?M操作標(biāo)志按鈕
	private?JButton?button?=?null;
	//?業(yè)務(wù)邏輯類
	private?CalService?service?=?new?CalService（）;
	//?定義監(jiān)聽器
	private?ActionListener?actionListener?=?null;?
	//?設(shè)置panel的寬
	private?final?int?PRE_WIDTH?=?370;
	//?設(shè)置panel的高
	private?final?int?PRE_HEIGHT?=?205;

	/**
	?*?默認(rèn)構(gòu)造器
	?*/
	Calframe（）?{
		super（）;
		initialize（）;
	}

	/**
	?*?初始化界面
	?*?
	?*?@return?void
	?*/
	private?void?initialize（）?{
		this.settitle（“揸槍計算器“）;
		this.setResizable（false）;
		
		//?增加計算輸入框
		JPanel?panel?=?new?JPanel（）;
		panel.setBackground（new?Color（000））;
		panel.setLayout（new?BorderLayout（5?1））;
		panel.add（getTextField（）?BorderLayout.NORTH）;
		panel.setPreferredSize（new?Dimension（PRE_WIDTH?PRE_HEIGHT））;
		
		//?增加存儲操作鍵
		JButton[]?mButton?=?getMButton（）;
		JPanel?panel1?=?new?JPanel（）;
		panel1.setLayout（new?GridLayout（5?1?0?4））;
		panel1.setBackground（new?Color（000））;
		for（JButton?b?:?mButton）
				panel1.add（b）;
				
		//?增加結(jié)果操作鍵
		JButton[]?rButton?=?getRButton（）;
		JPanel?panel2?=?new?JPanel（）;
		panel2.setBackground（new?Color（000））;
		panel2.setLayout（new?BorderLayout（5?1））;
		JPanel?panel2b?=?new?JPanel（）;
		panel2b.setBackground（new?Color（000））;
		panel2b.setLayout（new?GridLayout（1?3?3?4））;
		for（JButton?b?:?rButton）
			panel2b.add（b）;
		
		//?增加數(shù)字與其他運算符
		JButton[]?nButton?=?getNButton（）;
		JPanel?panel3?=?new?JPanel（）;
		panel3.setBackground（new?Color（000））;
		panel3.setLayout（new?GridLayout（4?5?3?4））;
		for（JButton?b?:?nButton）
			panel3.add（b）;
				
		//?把新增加的面板加到frame
		panel2.add（panel2b?BorderLayout.NORTH）;
		panel2.add（panel3?BorderLayout.CENTER）;
		panel.add（panel1?BorderLayout.WEST）;
		panel.add（panel2?BorderLayout.CENTER）;
		this.add（panel）;
	}
	/**
	?*?這個方法用來獲取監(jiān)聽器
	?*?
	?*?@return?ActionListener
	?*/
	public?ActionListener?getActionListener（）?{
		if?（actionListener?==?null）?{
			actionListener?=?new?ActionListener（）?{
				public?void?actionPerformed（ActionEvent?e）?{
					String?cmd?=?e.getActionCommand（）;
					String?result?=?null;
					try?{
						result?=?service.callMethod（cmd?textField.getText（））;
					}?catch?（Exception?e1）?{
						System.out.println（e1.getMessage（））;
					}
					
					if（cmd.indexOf（“MC“）?==?0）?{
						button.setText（““）;
					}
					else?{
						button.setText（“M“）;
					}
					
					if（result?!=?null）?{
						textField.setText（result）;					
					}
				}
			};
		}
		return?actionListener;
	}

	

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2011-08-09?17:18??Calculator\
?????文件?????????301??2011-08-09?17:18??Calculator\.classpath
?????文件?????????386??2011-08-09?17:51??Calculator\.project
?????目錄???????????0??2011-08-09?17:18??Calculator\.settings\
?????文件?????????629??2011-08-09?17:18??Calculator\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2011-08-09?17:18??Calculator\bin\
?????文件????????1643??2011-08-10?22:42??Calculator\bin\Calframe$1.class
?????文件????????5243??2011-08-10?22:42??Calculator\bin\Calframe.class
?????文件????????3950??2011-08-09?20:44??Calculator\bin\CalService.class
?????文件?????????537??2011-08-09?17:59??Calculator\bin\Main.class
?????文件????????1225??2011-08-09?18:06??Calculator\bin\MyMath.class
?????目錄???????????0??2011-08-09?17:18??Calculator\src\
?????文件????????5592??2011-08-10?22:42??Calculator\src\Calframe.java
?????文件????????5687??2011-08-09?20:44??Calculator\src\CalService.java
?????文件?????????292??2011-08-09?17:59??Calculator\src\Main.java
?????文件????????1821??2011-08-09?18:06??Calculator\src\MyMath.java