TextAnalyzer.java

import java.io.*;
import java.util.Scanner;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class TextAnalyzer {
    private static Scanner scanner = new Scanner(System.in);
    
    public static void main(String[] args) {
        while (true) {
            displayMenu();
            int choice = getUserChoice();
            
            switch (choice) {
                case 1:
                    analyzeFromInput();
                    break;
                case 2:
                    analyzeFromFile();
                    break;
                case 3:
                    displayHelp();
                    break;
                case 4:
                    System.out.println("\nGoodbye!");
                    scanner.close();
                    return;
                default:
                    System.out.println("\nInvalid choice. Please try again.");
            }
        }
    }
    
    private static void displayMenu() {
        System.out.println("\n=== Text Analyzer ===");
        System.out.println("1. Analyze text from keyboard input");
        System.out.println("2. Analyze text from file");
        System.out.println("3. Help");
        System.out.println("4. Exit");
        System.out.print("Enter your choice (1-4): ");
    }
    
    private static int getUserChoice() {
        try {
            return Integer.parseInt(scanner.nextLine());
        } catch (NumberFormatException e) {
            return -1;
        }
    }
    
    private static void analyzeFromInput() {
        System.out.println("\nEnter your text (type 'END' on a new line when finished):");
        StringBuilder text = new StringBuilder();
        String line;
        
        while (!(line = scanner.nextLine()).equals("END")) {
            text.append(line).append("\n");
        }
        
        analyzeText(text.toString());
    }
    
    private static void analyzeFromFile() {
        System.out.print("\nEnter the file path: ");
        String filePath = scanner.nextLine();
        
        try {
            String content = new String(java.nio.file.Files.readAllBytes(
                java.nio.file.Paths.get(filePath)));
            analyzeText(content);
        } catch (IOException e) {
            System.out.println("Error reading file: " + e.getMessage());
        }
    }
    
    private static void analyzeText(String text) {
        // Basic statistics
        int charCount = text.length();
        int charNoSpaces = text.replaceAll("\\s+", "").length();
        String[] words = text.trim().split("\\s+");
        int wordCount = text.trim().isEmpty() ? 0 : words.length;
        int sentenceCount = text.split("[.!?]+").length;
        
        // Average word length
        double avgWordLength = wordCount > 0 ? 
            (double) charNoSpaces / wordCount : 0;
        
        // Display results
        System.out.println("\n=== Analysis Results ===");
        System.out.println("Total characters: " + charCount);
        System.out.println("Characters (no spaces): " + charNoSpaces);
        System.out.println("Word count: " + wordCount);
        System.out.println("Sentence count: " + sentenceCount);
        System.out.printf("Average word length: %.2f characters\n", avgWordLength);
        
        // Ask to save results
        System.out.print("\nWould you like to save these results? (y/n): ");
        if (scanner.nextLine().trim().equalsIgnoreCase("y")) {
            saveResults(text, charCount, charNoSpaces, wordCount, 
                      sentenceCount, avgWordLength);
        }
    }
    
    private static void saveResults(String text, int charCount, int charNoSpaces,
                                  int wordCount, int sentenceCount, double avgWordLength) {
        String timestamp = LocalDateTime.now().format(
            DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss"));
        String filename = "analysis_" + timestamp + ".txt";
        
        try (PrintWriter writer = new PrintWriter(filename)) {
            writer.println("=== Text Analysis Report ===");
            writer.println("Generated: " + LocalDateTime.now());
            writer.println("\n=== Input Text ===");
            writer.println(text);
            writer.println("\n=== Statistics ===");
            writer.println("Total characters: " + charCount);
            writer.println("Characters (no spaces): " + charNoSpaces);
            writer.println("Word count: " + wordCount);
            writer.println("Sentence count: " + sentenceCount);
            writer.printf("Average word length: %.2f characters\n", avgWordLength);
            
            System.out.println("Results saved to: " + filename);
        } catch (IOException e) {
            System.out.println("Error saving results: " + e.getMessage());
        }
    }
    
    private static void displayHelp() {
        System.out.println("\n=== Help ===");
        System.out.println("1. Analyze text from keyboard input:");
        System.out.println("   - Type or paste your text");
        System.out.println("   - Type 'END' on a new line when finished");
        System.out.println("   - View the analysis results");
        System.out.println("   - Optionally save results to a file");
        System.out.println("\n2. Analyze text from file:");
        System.out.println("   - Enter the path to your text file");
        System.out.println("   - View the analysis results");
        System.out.println("   - Optionally save results to a file");
        System.out.println("\nPress Enter to continue...");
        scanner.nextLine();
    }
}