import java.io.*;

class CompFiles {

public static void main(String ... args) {

int i = 0, j = 0;

if(args.length != 2) {

System.out.println("Usage: CompFiles <file_1> <file_2>");

return;

}

try(FileInputStream f1 = new FileInputStream(args[0]);

FileInputStream f2 = new FileInputStream(args[1])) {

do {

i = f1.read();

j = f2.read();

if(i != j) break;

} while(i != -1 && j != -1);

if(i != j)

System.out.println("Files are different.");

else

System.out.println("Files are similar.");

} catch(IOException exc) {

System.out.println("Input/Output error: " + exc);

}

}

}