Name: diC59631 Date: 10/08/98


/*
The following code is intended to copy a file.

I compile on Solaris 2.5.1 jdk1.1.6 and move the
cf.jar file to a windows95 machine.

When run with jre116 (rt.jar) , it works fine.

When run with jdk1.1.7\bin\jre (classes.zip) , it
appears to work, but the files are not identical.
(They are the same size, but a 'fc' command
shows differences. The file I try to copy is a
compiled executable (.exe file)
*/

import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
/**
Test to 'copy' a file
*/
public class cf {
public String msg;
//
public cf(String inFileName) {
System.out.println("inputFile ->" + inFileName + "<");
File from = new File(inFileName);
FileReader fr;
try {
fr = new FileReader(from);
} catch(Exception e) {
msg = "<copyFile> file not found->" + from.getPath();
return;
}
int size = (int) from.length();
char cbuf[] = new char[size];
File to = new File(inFileName + ".copy");
try {
FileWriter tow = new FileWriter(to);
int bytes_read = fr.read(cbuf,0,size);
if(bytes_read != size)
{
String s = "<copyFile> internal problem";
s=s+ size + " expected from " + from.getPath();
s=s + "(" + bytes_read + ")";
msg = s;
return;
}
fr.close();
tow.write(cbuf,0,size);
tow.close();
} catch(Exception e) {
msg = e.toString();
return; }
}

public static void main(String arg[]) {
if(arg.length < 1)
{
System.out.println("reqd 1st argument missing - should be inputfilename");
System.exit(1);
}
cf x = new cf(arg[0]);
if(x.msg != null)
System.out.println(x.msg);
}
}
(Review ID: 40161)
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