pingfen.java

java做的大赛评分程序

/*
 * Created on 2006-7-2
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

/**
 * @author webb
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
import java.io.*;
public class pingfen {
	  int bhao[]=new int[300];
	  	String xming[]=new String[300];
	  double cji[]=new double[300];
	  double temp[]=new double[10];
	  BufferedReader br = null;
	  BufferedWriter bw=null;
	  FileReader fr=null;
	  int rshu,qq;
	  double pp;
	public void init()
	{
		  int x=0;
		  int in;
	      System.out.print("请选择操作:");
	      x=rcuoint(2);
          switch(x)
		  {
		   case 1:luru();break;
		   case 2:baocun();break;
		   case 3:duqu();break;
		   case 4:exitc();break;
		   default : exitc();break;
		  }	
	}	
	public double  rcuocji(int i)
	{
		double j;
		double pd=0;
		//double pp;
		try
		  {
	 		br = new BufferedReader(new InputStreamReader(System.in));
		  	//String line = br.readLine();
		  	try
			{
		  		String line = br.readLine();
		  	 pd=Double.parseDouble(line);  pp=pd;
			}
		    catch (java.lang.NumberFormatException ivjExc)
		   {
		    System.out.println("数据类型错误，请重新输入!");
		    System.out.print("请输入"+(i+1)+"号评委给的成绩：");	
	          rcuocji(i);
		   }   
		   
		  }
	      catch(IOException e){}  
	      return pp;
	}
	public int rcuoint(int i)
	{
		int pd=i;
		try
		  {
	 		br = new BufferedReader(new InputStreamReader(System.in));
		  	String line = br.readLine();
		  	try
			{
		  	 pd=Integer.parseInt(line);qq=pd;
			}
		    catch (java.lang.NumberFormatException ivjExc)
		   {
		    System.out.println("数据类型错误，请重新输入!");
		    if(i==1)System.out.print("请输入参赛人数：");	
		    if(i==2)System.out.print("请选择操作：");
	          rcuoint(i);
		   }   
		 }
	      catch(IOException e){}  
	      return qq;
	}
	public void luru()
	{

	  System.out.print("请输入参赛人数：");	
	   rshu=rcuoint(1);
      int j=0;
      for(int i=0;i<rshu;i++)
      {
      	bhao[i]=i+1;
      	System.out.print("请输入"+bhao[i]+"号选手的姓名：");
      	
    	 try 
	      {
      	 	br = new BufferedReader(new InputStreamReader(System.in));
  		  	String line = br.readLine();
      	 	xming[i]=line; 
	      }
      	   catch(IOException e){}
      	   	 for(j=0;j<10;j++)
      	 {
      	 	System.out.print("请输入"+(j+1)+"号评委给的成绩：");	
      	 	temp[j]=rcuocji(j);//容错处理
      	 }
      	cji[i]=jisuan();
      }
	  xianshi();
	}
	public double jisuan()
	{
	  //////////pai xu
		int i,j,k;
	  	double t;
	  	for(j=0;j<9;j++)
	  		for(i=0;i<9-j;i++)
	  			if(temp[i]>temp[i+1])
	  			{
	  			  t=temp[i];
	  			  temp[i]=temp[i+1];
	  			  temp[i+1]=t;
	  			}
	 /////////ji suan
	   double av,sum;
	   sum=0;
	   for(int q=1;q<9;q++)
	   	      sum+=temp[q];
	   av=sum/10;
	  return av;			
	}
	public void bianhao()
	{
	   char ch='a';
	   int i,j,k,tb,fshi;
	  	double tc;
	  	String tx;
	  	for(j=0;j<rshu-1;j++)
	  		for(i=0;i<rshu-1-j;i++)
	  			if(bhao[i]>bhao[i+1])
	  			{	 			  
	  			  tb=bhao[i];
	  			  bhao[i]=bhao[i+1];
	  			  bhao[i+1]=tb;
	  			  
	  			  tx=xming[i];
	  			  xming[i]=xming[i+1];
	  			  xming[i+1]=tx;
	  			  
	 			  tc=cji[i];
	  			  cji[i]=cji[i+1];
	  			  cji[i+1]=tc;
	  			} 
		for(int p=0;p<rshu;p++)
	   {
	     System.out.println("选手编号:"+bhao[p]+"        姓名:"+xming[p]+"          成绩:"+cji[p]);	
	   }
	   System.out.print("是否要以其他方式查看成绩？Y/N");
	   try
		  {
	      	br = new BufferedReader(new InputStreamReader(System.in));
	      	 ch=(char)br.read();
		  }
	      catch(IOException e){}
	   if(ch=='Y'||ch=='y')
	   {
	   	  xsmenu();
	   	  int f;
	   	  f=rcuoint(2);
  		  switch(f)
		  {
		   case 1:bianhao();break;
		   case 2:gaodi();break;
		   default:menu();break;
		  }	
	   }
	else 
		{
		     System.out.print("是否保存参赛选手成绩资料？Y/N");
		     char bcun='a';
		     try{
		     br = new BufferedReader(new InputStreamReader(System.in));
		  	 bcun=(char)br.read();
		  	 }catch(IOException e){}
		    if(bcun=='Y'||bcun=='y')baocun();
		    else menu();
		 }
	}
	public void gaodi()
	{
		int i,j,k,tb,fshi;
	  	double tc;
	  	String tx;
	  	char ch='a';
	  	for(j=0;j<rshu-1;j++)
	  		for(i=0;i<rshu-1-j;i++)
	  			if(cji[i]<cji[i+1])
	  			{
	  			  tc=cji[i];
	  			  cji[i]=cji[i+1];
	  			  cji[i+1]=tc;
	 			  
	  			  tb=bhao[i];
	  			  bhao[i]=bhao[i+1];
	  			  bhao[i+1]=tb;
	  			  
	  			  tx=xming[i];
	  			  xming[i]=xming[i+1];
	  			  xming[i+1]=tx;
	  			} 
		for(int p=0;p<rshu;p++)
		   {
		     System.out.println("选手编号:"+bhao[p]+"        姓名:"+xming[p]+"          成绩:"+cji[p]);	
		   }
		  System.out.print("是否要以其他方式查看成绩？Y/N");
		  try
		  {
	      	br = new BufferedReader(new InputStreamReader(System.in));
	      	 ch=(char)br.read();
		  }
	      catch(IOException e){}
	   if(ch=='Y'||ch=='y')
	   {
	   	  xsmenu();
	   	  int f;
	   	  f=rcuoint(2);
  	   switch(f)
		  {
		   case 1:bianhao();break;
		   case 2:gaodi();break;
		   default:menu();break;
		  }	
    	}
		else 
		{
		     System.out.print("是否保存参赛选手成绩资料？Y/N");
		     char bcun='a';
		     try{
		     br = new BufferedReader(new InputStreamReader(System.in));
		  	 bcun=(char)br.read();
		  	 }catch(IOException e){}
		    if(bcun=='Y'||bcun=='y')baocun();
		    else menu();
		 }
	}

	public void xianshi()
	{
		  System.out.print("成绩已录入，需要查看吗？Y/N");
		char ckan='a';
	  int fshi=0;
	  try 
      {
	  	 br = new BufferedReader(new InputStreamReader(System.in));
	  	 ckan=(char)br.read();
         if(ckan=='Y'||ckan=='y')
    	   {
    	   	 xsmenu();	
    	   	 fshi=rcuoint(2);
		  switch(fshi)
		  {
		   case 1:bianhao();break;
		   case 2:gaodi();break;
		   default:menu();break;
		  }	
    	   }
		  else 
		   {
		     System.out.print("是否保存参赛选手成绩资料？Y/N");
		     char bcun='a';
		     br = new BufferedReader(new InputStreamReader(System.in));
		  	 bcun=(char)br.read();
		    if(bcun=='Y'||bcun=='y')baocun();
		    else menu();
		   }
      }
		  catch(IOException e){}
	}
	public void baocun()
	{
	  String s;
	  if(bhao[0]==0)
	  	{
	  	 System.out.println("你还没有输入数据，请返回操作！");
	  	 menu();
	  	}
	  else
	  {
	  System.out.print("请输入保存文件名：");	  
		try
	  {
			BufferedReader  wj=new BufferedReader(new InputStreamReader(System.in));
			String ss=wj.readLine();
			bw= new BufferedWriter(new FileWriter(ss));
	     for(int i=0;i<rshu;i++)
	     {
	     	s="编号："+bhao[i]+"       姓名："+xming[i]+"       成绩："+cji[i];
	     	bw.write(s);
	     	bw.newLine();
	     }
	     bw.close(); 
	     System.out.println("文件保存成功!");
	     menu();
	  }
	  catch(IOException e){}
	  }
	}
	public void duqu()
	{
		String s,fname;
		String file="";
		String line;
		char ch='a';
		System.out.print("请输入要读取的文件名：");
		try
		  {
	      	br = new BufferedReader(new InputStreamReader(System.in));
		  	 file = br.readLine();
		  }
	      catch(IOException e){}
		try
	  {
		 fr=new FileReader(file);
		 br=new BufferedReader(fr);
		 while((line=br.readLine())!=null)
		 	    System.out.println(line);
		 fr.close();
		 br.close();
	  }
		 catch(IOException e){}	
		 System.out.print("是否需要其它操作？Y/N");
		 try
		  {
	      	br = new BufferedReader(new InputStreamReader(System.in));
	      	 ch=(char)br.read();
		  }
	      catch(IOException e){}
	   if(ch=='Y'||ch=='y')
	   {
	   	  menu();
	   }
	   else 
	   {	   	
	   	exitc();
	   }
		 
	}
	public void exitc()
	{
		System.out.println("你已退出系统，谢谢使用！");
		System.exit(1);	
	}
	public void xsmenu()
	{
		System.out.print("请选择查看方式：\n"
	         	+"1.按参赛选手的编号顺序查看\n"
				+"2.按成绩的从高到低顺序查看\n");
	        System.out.print("请选择操作:"); 
	}
	public void menu()
	{
		System.out.println("主菜单：\n"
				+"1.成绩录入          2.成绩保存          3.成绩读取          4.退出\n");
		 init();	
	}	
	public  pingfen()
	{
	 System.out.println("================大赛评分程序================\n"
	 		+" 计算机学院  2003级软件(2)班  陈伟  3103003333\n");
	 menu();
	 	
	}
	public static void main(String[] args) {
		pingfen pfen=new pingfen();
	}
}