phonecenter.java

Java编程技巧

import java.lang.*;
import java.awt.*;
import java.applet.*;
import java.io.*;
import java.net.*;
import java.applet.AudioClip;
import java.util.Random;
/* 建立一个电话模拟机窗口*/
public class PhoneCenter extends Applet{

MyThread thread=new MyThread();
Font f=new Font("宋体", 1, 20);
MyButton b1,b2,b3,b4,b5,b6,b7,b8,b9,b0,bx,bf;//用自己的类创建电话号码按钮
Button dial,baocun,save,call;
Panel pu,pm,pd,p1,p2,p3,p4,p5,p6;
TextField tf,tf1;
Label notepad,phonepad;
TextArea ta;//作为记事本的文本区域
List list;//作为电话簿的列表框
Checkbox mt,cb,gd,jx;
CheckboxGroup cbg;
String str="",taStr,text="",dialdigital,dialstate;
AudioClip bohaoyin,bo1,bo2,bo3,bo4,bo5,bo6,bo7,bo8,bo9,bo0,bof,box,busy,seagull,mti,hello;
int i,j,mtnum,re;
boolean bh=false,ld=false;
//对窗口进行初始化
public void init(){
//导入声音文件
	bo1 = getAudioClip(getCodeBase(),"Audio/1.au");
	bo2 = getAudioClip(getCodeBase(),"Audio/2.au");
	bo3 = getAudioClip(getCodeBase(),"Audio/3.au");
	bo4 = getAudioClip(getCodeBase(),"Audio/4.au");
	bo5 = getAudioClip(getCodeBase(),"Audio/5.au");
	bo6 = getAudioClip(getCodeBase(),"Audio/6.au");
	bo7 = getAudioClip(getCodeBase(),"Audio/7.au");
	bo8 = getAudioClip(getCodeBase(),"Audio/8.au");
	bo9 = getAudioClip(getCodeBase(),"Audio/9.au");
	bo0 = getAudioClip(getCodeBase(),"Audio/0.au");
	box = getAudioClip(getCodeBase(),"Audio/0.au");
	bof = getAudioClip(getCodeBase(),"Audio/0.au");
	bohaoyin=getAudioClip(getCodeBase(),"Audio/ling.au");
	busy=getAudioClip(getCodeBase(),"Audio/busy.wav");
    seagull=getAudioClip(getCodeBase(),"Audio/drip.au");
	mti=getAudioClip(getCodeBase(),"Audio/mti.wav");
	hello=getAudioClip(getCodeBase(),"Audio/hello.wav");

notepad=new Label("   记事本");
tf=new TextField(8);
tf1=new TextField(8);
phonepad=new Label("电话簿");
pu=new Panel();
pu.setLayout(new GridLayout(1,4));
pu.add(notepad);pu.add(tf);pu.add(tf1);pu.add(phonepad);
pu.setFont(f);
//创建一个文本域作为记事本
ta=new TextArea("",10,15);
p1=new Panel();
p1.add(ta);

//用自己的类创建电话号码按钮
b1=new MyButton("1");b2=new MyButton("2");b3=new MyButton("3");b4=new MyButton("4");
b5=new MyButton("5");b6=new MyButton("6");b7=new MyButton("7");b8=new MyButton("8");
b9=new MyButton("9");b0=new MyButton("0");bx=new MyButton("*");bf=new MyButton("#");
p2=new Panel();
p2.setLayout(new GridLayout(4,3));
p2.setFont(f);
p2.add(b1);p2.add(b2);p2.add(b3);p2.add(b4);p2.add(b5);
p2.add(b6);p2.add(b7);p2.add(b8);p2.add(b9);p2.add(b0);p2.add(bx);
p2.add(bf);
//创建列表框作为电话簿
list=new List(11,false);
p3=new Panel();
p3.add(list);
//创建面板，设置面板布局
pm=new Panel();
pm.setLayout(new GridLayout(1,3,20,0));
pm.add(p1);pm.add(p2);pm.add(p3);

dial=new Button("拨号");//创建拨号按钮
call=new Button("来电");


p6=new Panel();
p6.setLayout(new GridLayout(2,1));
p6.add(dial);p6.add(call);

										//创建"免提","重拨","挂断","继续"复选框
cbg=new CheckboxGroup();
mt=new Checkbox("免提",cbg,true);cb=new Checkbox("重拨",cbg,false);
gd=new Checkbox("挂断",cbg,false);jx=new Checkbox("继续",cbg,false);
cb.setEnabled(false);
jx.setEnabled(false);
p4=new Panel();
p4.setLayout(new GridLayout(2,2));
p4.add(mt);p4.add(cb);p4.add(gd);p4.add(jx);

save=new Button("存储");				//用于保存电话号码到电话簿
baocun=new Button("保存");				//用于将信息保存到外部文件中

p5=new Panel();p5.setLayout(new GridLayout(2,1));
p5.add(save);p5.add(baocun);


pd=new Panel();
pd.add(new Label("  "));
pd.add(p6);
pd.add(new Label(""));
pd.add(p4);pd.add(new Label(" "));
pd.add(p5);pd.setFont(f);				//设置面板内字体格式

add(pu);add(pm);add(pd);//add(pb);
readto();
dial.setBackground(new Color(245,197,143));
call.setBackground(new Color(245,197,143));
baocun.setBackground(new Color(245,197,143));
save.setBackground(new Color(245,197,143));
}


									//响应事件方法
public boolean action(Event evt,Object obj)
{call.setEnabled(true);
 if (evt.target instanceof Button)
	 {    //单击电话号码时将所拨的号码输入文本框,同时发出相应拨号声
	 	if ("1".equals(obj)){ str="1";tf.setText(tf.getText()+str);dial("1");call.setEnabled(false);}
		if ("2".equals(obj)){ str="2";tf.setText(tf.getText()+str);dial("2");call.setEnabled(false);}
		if ("3".equals(obj)){ str="3";tf.setText(tf.getText()+str);dial("3");call.setEnabled(false);}
		if ("4".equals(obj)){ str="4";tf.setText(tf.getText()+str);dial("4");call.setEnabled(false);}
		if ("5".equals(obj)){ str="5";tf.setText(tf.getText()+str);dial("5");call.setEnabled(false);}
		if ("6".equals(obj)){ str="6";tf.setText(tf.getText()+str);dial("6");call.setEnabled(false);}
		if ("7".equals(obj)){ str="7";tf.setText(tf.getText()+str);dial("7");call.setEnabled(false);}
		if ("8".equals(obj)){ str="8";tf.setText(tf.getText()+str);dial("8");call.setEnabled(false);}
		if ("9".equals(obj)){ str="9";tf.setText(tf.getText()+str);dial("9");call.setEnabled(false);}
		if ("0".equals(obj)){ str="0";tf.setText(tf.getText()+str);dial("0");call.setEnabled(false);}
		if ("*".equals(obj)){ str="*";tf.setText(tf.getText()+str);dial("*");call.setEnabled(false);}
		if ("#".equals(obj)){ str="#";tf.setText(tf.getText()+str);dial("#");call.setEnabled(false);}
			  		//单击“拨号”按钮时进行拨号
		if ("拨号".equals(obj)&&(!(bh))){bohao();}
			  		//单击“存贮”按钮时，如果电话簿中没有相同号码，将文本框的电话号码存入电话簿
		if ("存储".equals(obj)){seagull.play();saveto();
			  				if(!(tf1.getText().equals("通话中")||tf1.getText().equals("已挂机")))
			  				  call.setEnabled(false);
			  	}
			  		//单击“保存”按钮时将“记事本”和“电话簿”中信息存到外部文件
		if ("保存".equals(obj)){writeto();}
					//单击“来电”按钮时，进行来电模拟
		if ("来电".equals(obj)){if(tf1.getText().equals("通话中")) jx.setEnabled(true);
								cb.setEnabled(false);thread.stop();hello.stop();
								bohaoyin.play();laidian();}

		}
		//双击“电话簿”中的电话号码时将该号码填入文本框内
	else if(evt.target instanceof List){tf.setText(list.getSelectedItem());}
	else{
		//选中“重拨”复选框时中断拨号操作，然后重新拨号
	if (cbg.getSelectedCheckbox().equals(cb))
			{thread.stop();hello.stop();busy.stop();bohaoyin.stop();bohao();}
	    //选中“继续”，继续通话
	if(cbg.getSelectedCheckbox().equals(jx)) {
		thread.stop();bh=false;call.setEnabled(false);
		if (re==2){	//若之前状态为通话中，恢复原状态
			hello.loop();tf.setText(dialdigital);tf1.setText(dialstate);call.setEnabled(true);}
		}
		//选中“免提”复选框时播放免提音
	if (cbg.getSelectedCheckbox().equals(mt)){mti.play();
		if	(tf1.getText().equals("等待")||tf1.getText().equals("占线")||tf1.getText().equals("来电"))
		call.setEnabled(false);}
		//选中“挂断”复选框时取消本次拨号操作
	if (cbg.getSelectedCheckbox().equals(gd))
			{thread.stop();hello.stop();busy.stop();bohaoyin.stop();
			 re=3;dial.setEnabled(true);call.setEnabled(true);jx.setEnabled(false);
			 bh=false;ld=false;
			 tf.setText("");tf1.setText("已挂机");
			}

	}
	return true;
}
//创建一个方法，用于在将电话号码从文本框存入电话簿前
//检查电话簿中是否已经存在相同的号码
public boolean checkTf()
{boolean result=false;
 for (int i=0;i<list.countItems(); i++)
 { if (tf.getText().equals(list.getItem(i))){ result=true;return result;}}
	return result;
}
public void saveto()
{ if (!((checkTf())||(tf.getText().equals(""))))
  {list.addItem(tf.getText());}

}

public void laidian()
{	call.setEnabled(false);
    dial.setEnabled(false);
    ld=true;
	Random randGen=new Random();
	int calldata=Math.abs(randGen.nextInt())%6;
	String s1[]={"13671007206","68273848","0256621052","0252235703","03353630140","13901213327"};

	if (!(tf.getText().equals("")))
	dialdigital=tf.getText();
	dialstate=tf1.getText();
    tf.setText(s1[calldata]);
    tf1.setText("来电");
}

//创建点击“拨号”按钮时进行响应的方法
public void bohao()
	//如果文本框中没有电话号码，提示输入
{dial.setEnabled(false);call.setEnabled(false);
 if (tf.getText().equals("")){tf1.setText("请输入号码！");dial.setEnabled(true);}
 else{
	bh=true;
	 dial(tf.getText());
	 //用随机数来决定播放拨号音还是占线音
	 Random rd=new Random();
	 re=Math.abs(rd.nextInt())%3;
	 switch(re)
	 {
		 case(0):tf1.setText("等待");cb.setEnabled(true);
	 		     bohaoyin.loop();
	 		     break;
	  	 case(1):tf1.setText("占线");cb.setEnabled(true);
	 		     busy.loop();
	 		     break;
	 	 case(2):call.setEnabled(true);cb.setEnabled(false);
	 	 		 tf1.setText("通话中");
	 	 		 hello.loop();
	 	 		 break;
			 }

	}

}
//以下方法用于点击电话号码按钮或是“拨号”按钮时
//进行拨号模拟
public void dial(String text)
{
	MyThread thread=new MyThread();
									//获取文本框中的电话号码
 for (i=0;i<text.length();i++)
 {
	 char digit=text.charAt(i);
	 switch (digit)//根据文本框中的电话号码播放相应拨号声
		           //同时显示动感效果
	 {case ('0'): b0.setBackground(new Color(255,230,255));
		          bo0.play();
				 thread.run(150);//利用线程产生延时效果，隔开两种颜色的显示时间，以此来产生拨号动感效果
				 b0.setBackground(new Color(197,202,4));
				thread.run(150);
				 break;
	  case ('1'):b1.setBackground(new Color(255,230,255));
				 bo1.play();thread.run(150);
				b1.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	case ('2'):b2.setBackground(new Color(255,230,255));
				 bo2.play();thread.run(150);
				b2.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	case ('3'):b3.setBackground(new Color(255,230,255));
				 bo3.play();thread.run(150);
				b3.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	 case ('4'):b4.setBackground(new Color(255,230,255));
				 bo4.play();thread.run(150);
				b4.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	 case ('5'):b5.setBackground(new Color(255,230,255));
				 bo5.play();thread.run(150);
				b5.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	 case ('6'):b6.setBackground(new Color(255,230,255));
				 bo6.play();thread.run(150);
				b6.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	case ('7'):b7.setBackground(new Color(255,230,255));
				 bo7.play();thread.run(150);
				b7.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	case ('8'):b8.setBackground(new Color(255,230,255));
				 bo8.play();thread.run(150);
				b8.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	case ('9'):b9.setBackground(new Color(255,230,255));
				 bo9.play();thread.run(150);
				b9.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	case ('*'):bx.setBackground(new Color(255,230,255));
				 box.play();thread.run(150);
				bx.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
	case ('#'):bf.setBackground(new Color(255,230,255));
				 bof.play();thread.run(150);
				bf.setBackground(new Color(197,202,4));
				thread.run(150);
				break;
      }

 }

}
//将外部文件信息导入“电话簿”和”记事本“
public void readto()
{ text="";
  ta.setText("");
  list.clear();
  text=getCodeBase().toString().substring(6);
   File notebook=new File(text+"记事本.txt");File phonebook=new File(text+"电话簿.txt");
	try           //创建文件
	{BufferedReader br1=new BufferedReader(new FileReader(notebook));
	 BufferedReader br2=new BufferedReader(new FileReader(phonebook));
	 //将文件内容导入“记事本”
  while (br1.ready()){text=br1.readLine();ta.append(text+"\r\n");}
  br1.close();
     //将文件内容导入电话簿
  while(br2.ready()){text=br2.readLine();list.addItem(text);}
  	br2.close();
	}
	//找不到文件的例外处理
	catch(FileNotFoundException fnf)
	{ta.append("file not found exception!/n");
	 list.addItem("file not found exception!");
	}
	catch(IOException ioe)//读写文件出错的例外处理
	{ta.append("io exception!");
		 list.addItem("io exception");
	}
}
//将“记事本”和“电话簿”中信息导出到外部文件
public void writeto()
{  text=getCodeBase().toString().substring(6);
  	File notebook=new File(text+"记事本.txt");
  File phonebook=new File(text+"电话簿.txt");


  try
  {BufferedWriter bw1=new BufferedWriter(new FileWriter(notebook));
 BufferedWriter bw2=new BufferedWriter(new FileWriter(phonebook));
  bw1.write(ta.getText());//将“记事本”内容写入文件
  bw1.flush();
   bw1.close();
 //将电话簿内容写入文件

 for (int i=0;i< (list.countItems());i++)
 bw2.write(list.getItem(i)+"\r\n");
 bw2.flush();
  bw2.close();
}
catch(Exception e)//出错例外处理
{
	System.out.println("there are some errors.");
}

}



}