OneCompiler

JAVA 8

118

8 COVID19 && number is prime or no

Q1]

public class TextPrinterThread extends Thread {
private String text;
private int times;

public TextPrinterThread(String text, int times) {
    this.text = text;
    this.times = times;
}

public void run() {
    for (int i = 0; i < times; i++) {
        System.out.println(text);
    }
}

public static void main(String[] args) {
    TextPrinterThread thread1 = new TextPrinterThread("COVID19", 10);
    TextPrinterThread thread2 = new TextPrinterThread("LOCKDOWN2020", 20);
    TextPrinterThread thread3 = new TextPrinterThread("VACCINATED2021", 30);

    thread1.start();
    thread2.start();
    thread3.start();
}

}

Q2]

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

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Prime Number Checker</title> </head> <body> <h2>Prime Number Checker</h2> <form method="post"> Enter a number: <input type="text" name="number"> <input type="submit" value="Check"> </form> 
<%!
    boolean isPrime(int number) {
        if (number <= 1) {
            return false;
        }
        for (int i = 2; i <= Math.sqrt(number); i++) {
            if (number % i == 0) {
                return false;
            }
        }
        return true;
    }
%>

<% 
    String numberStr = request.getParameter("number");
    if (numberStr != null && !numberStr.isEmpty()) {
        int number = Integer.parseInt(numberStr);
        boolean prime = isPrime(number);
%>

<p>
    <% 
        if (prime) {
    %>
    <font color="red"><%= number %> is a prime number.</font>
    <% 
        } else {
    %>
    <font color="red"><%= number %> is not a prime number.</font>
    <% 
        }
    %>
</p>

<% } %>
</body> </html>