using java have the program read the text file and for it to spit out a output im pretty sure all the coding is right just cant find out why my program isn't reading this text file

// DB7.java CS5151/6051 cheng 2019 // chase test for lossless join // Usage: java DB7 F R1 R2 ... // DB7.java CS5151/6051 cheng 2019 // chase test for lossless join // Usage: java DB7 F R1 R2 ... // F is a file that has the first line all the attributes and // then an FD a line with a space between the left-hand side and the right-hand side // R1, R2, ... are attribute sets in a proposed decomposition

import java.io.*; import java.util.*;

public class DB7{

class FD{ HashSet lhs; char rhs; public FD(HashSet l, char r){ lhs = l; rhs = r; } public boolean equals(Object obj){ FD fd2 = (FD)obj; return lhs.equals(fd2.lhs) && rhs == fd2.rhs; } public void print(){ lhs.forEach(c -> System.out.print(c)); System.out.println(" " + rhs); } };

HashSet R = new HashSet(); // all attributes HashSet F = new HashSet(); // the set of FDs int[][] tableau = null; int rows = 0; int cols = 0; char[] attributes = null; HashMap att2col = new HashMap(); int n = 0; int m = 0; int l = 0; boolean changed = false;

public DB7(String[] args){ // 1. split FDs so each FD has a single attribute on the right Scanner in = null; try { in = new Scanner(new File(args[0])); } catch (FileNotFoundException e){ System.err.println(args[0] + " not found"); System.exit(1); } String line = in.nextLine(); cols = line.length(); attributes = new char[cols]; for (int i = 0; i l = new HashSet(); String[] terms = in.nextLine().split(" "); for (int i = 0; i

void printTableau(){ for (int i = 0; i

void chase(){ // Your code needed do { changed = false; F.forEach(fd -> { fd.print(); for (m = 1; m { int col = att2col.get(c); if (tableau[m][col] == tableau[l][col]) n++; }); if (n == fd.lhs.size()){ // tuples m and l agree on all shared attributes int col = att2col.get(fd.rhs); // they should also agree on col if (tableau[m][col] != tableau[l][col]){ if (tableau[m][col] == -1) tableau[l][col] = -1; else if (tableau[l][col] == -1) tableau[m][col] = -1; else tableau[m][col] = -1; changed = true; printTableau(); } } } }); } while (changed == true); }

void conclusion(){ // Your code to idensity whether the decomposition is lossless if (changed) System.out.println("lossless"); else System.out.println("not lossless"); }

public static void main(String [] args){

if (args.length - - x 1412 Notepad Format Vww Help File di FABCDE CEA Windows CRLF) L 1. Colt