import java.io.*;
class Demo10
{
public static void main(String s[])throws Exception
{
InputStream is = new FileInputStream("Demo10.java");
OutputStream os = new FileOutputStream("xxx.java");
int data;
while((data=is.read())!=-1)
{
System.out.print((char)data);
os.write(data);
}
is.close();
os.close();
}
}
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