CrazyEngineers Forum - Computer Science & IT Engineering

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• hiii.. this is to all java programmers
• Ip address
• why this code does not execute

hiii.. this is to all java programmers Posted: 02 Oct 2010 11:47 PM PDT Hi frnds, can any body tell me how i can change registry subkey settings using java.. or how i can add a mechanism to my application to close properly with cleanup(sort of) when system shut down or logout occurs.....:confused: thanks in advance.

Ip address Posted: 02 Oct 2010 07:35 PM PDT what is the difference between physical Ip address and logical ip address please tell me any one .........................................

why this code does not execute Posted: 02 Oct 2010 03:53 AM PDT //java CopyFile aage.txt boxdemo.txt import java.io.*; class copyfile { public static void main(String args[])throws IOException { int i; FileInputStream fin; FileOutputStream fout; try { fin=new FileInputStream(args[0]); } catch(FileNotFoundException e) { System.out.println("Input file not found"); return; } //open output file try { fout=new FileOutputStream(args[1]); } catch(FileNotFoundException e) { System.out.println("Erroe opening output file"); return; } } catch(ArrayIndexOutOfBoundsException e) { System.out.println("Usage:copyfile from to"); return; } //copy file try { do { i=fin.read(); if(i!=-1) fout.write(i); } while(i!=-1); } catch(IOException e) { System.out.println("file error"); } fis.close(); fout.close(); } }

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