輸入檔與輸出檔運用

import java.util.StringTokenizer;

class TestFile

{

public static void main(String args[])

{

String inFile;

String outFile;

String a,c;

Double b,i=0.0;int k;

try

{

inFile=args[0];

FileReader rdinFile = new FileReader(inFile);

BufferedReader brdinFile = new BufferedReader(rdinFile);

for(k=1;k<12;k++)

{

a=brdinFile.readLine();

b=Double.parseDouble(a);

i=i+b;

}

System.out.println(i);

inFile=args[0];

StringTokenizer tokens = new StringTokenizer(inFile, ".t");

outFile=tokens.nextToken() + ".w" + tokens.nextToken();

System.out.println(outFile);

File myfile=new File(outFile);

myfile.createNewFile();

FileWriter fos= new FileWriter(outFile);

BufferedWriter bfos=new BufferedWriter(fos);

i=i/11;

c=String.valueOf(i);

bfos.write(c);

bfos.flush();

bfos.close();

}

catch (Exception e)

{

System.out.println("exception");

}

}

}