CAN YOU FINISH THE LAST PART PLEASE

import java.io.BufferedReader; import java.io.FileReader; import java.util.*; import java.io.*;

public class CFGSimplifier {

public static void main(String[] args) throws IOException { Scanner scanner = new Scanner(System.in); System.out.println("Enter a text file: "); String filePath = scanner.nextLine(); scanner.close();

Map> productions = readCFGFromFile(filePath);

simplifyEpsilonRules(productions); simplifyUselessRules(productions);

printSimplifiedCFG(productions); }

private static Map> readCFGFromFile(String filePath) throws IOException { Map> productions = new HashMap<>(); try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) { String line; while ((line = reader.readLine()) != null) { String[] rule = line.split("-"); String lhs = rule[0].trim(); String[] rhsList = rule[1].trim().split("\\|"); List rhs = new ArrayList<>(Arrays.asList(rhsList)); productions.put(lhs, rhs); } } return productions; }

private static void simplifyEpsilonRules(Map> productions) { Set epsilonProducibleVariables = new HashSet<>(); // Identify variables that directly produce epsilon (0) for (Map.Entry> entry : productions.entrySet()) { if (entry.getValue().contains("0")) { epsilonProducibleVariables.add(entry.getKey()); } }

// Additional logic to identify indirectly epsilon producible variables // ...add code here

// Modify the productions according to epsilon producible variables for (Map.Entry> entry : productions.entrySet()) { List newProductions = new ArrayList<>(); for (String production : entry.getValue()) { if (!production.equals("0")) { newProductions.add(production); // Additional logic to add productions derived from epsilon productions // ... add code here } } productions.put(entry.getKey(), newProductions); }

// Remove epsilon productions if not needed // ... add code here }