import java.io.*;

public class copyfile
{
public static void main(String args[])
{
try
{
FileInputStream fin;
FileOutputStream fout;
int i;
String source=args[0];
String target=args[1];
fin=new FileInputStream(source);
fout=new FileOutputStream(target);
do
{
i=fin.read();
if(i!=-1)
{
fout.write(i);
}
}
while(i!=-1);

fin.close();
fout.close();
}

catch(ArrayIndexOutOfBoundsException e)
{
System.out.println("format is : java file copy source target");
}
catch(FileNotFoundException e)
{
System.out.println("can not open file");
}
catch(IOException e)
{
System.out.println("can not read from file");
}
}
}

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