OneCompiler

JAVA 14

108

14 simple search engine. && JSP program to calculate sum

Q1]

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

public class SimpleSearchEngine {
private static final String SEARCH_STRING = "your_search_string";

public static void main(String[] args) {
   
    File currentDir = new File(".");
    
   
    File[] files = currentDir.listFiles();
    

    List<Thread> threads = new ArrayList<>();
    for (File file : files) {
        if (file.isFile() && file.getName().endsWith(".txt")) {
            Thread thread = new Thread(() -> searchInFile(file));
            threads.add(thread);
            thread.start();
        }
    }
    

    for (Thread thread : threads) {
        try {
            thread.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

private static void searchInFile(File file) {
    try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
        String line;
        int lineNumber = 0;
        while ((line = reader.readLine()) != null) {
            lineNumber++;
            if (line.contains(SEARCH_STRING)) {
                System.out.println("String found in file: " + file.getName() + ", Line: " + lineNumber);
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

}

Q2]

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>

<!DOCTYPE html> <html> <head> <title>Sum of First and Last Digit</title> </head> <body> <h2>Sum of First and Last Digit</h2> <% 
    String numberStr = request.getParameter("number");
    
   
    int sum = 0;
    
 
    if (numberStr != null && !numberStr.isEmpty()) {
        int number = Integer.parseInt(numberStr);
        int lastDigit = number % 10;
        
        while (number >= 10) {
            number /= 10;
        }
        
        int firstDigit = number;
        sum = firstDigit + lastDigit;
    }
%>
<p style="color: red; font-size: 18px;">Sum of first and last digit of <%= numberStr %> is <%= sum %></p>
</body> </html>