Showing posts with label prime number in java. Show all posts
Showing posts with label prime number in java. Show all posts

Friday, February 2, 2018

Prime Number Checker in Java

A simple program that I wrote using Java as my programming language that will ask the user to give a number and then our program will check and determine if the give number is a Prime Number or Not a Prime Number.

I am currently accepting programming and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental is (034) 4335675.








Sample Program Output


Program Listing

prime_number.java

import java.util.Scanner;

// prime_number.java
// Written By Mr. Jake R. Pomperada, MAED-IT
// February 2, 2018   10:44 AM   Friday
// Bacolod City, Negros Occidental Republic of the Philippines
// jakerpomperada@yahoo.com and jakerpomperada@gmail.com

class prime_number {
public static void main(String[] args)
      {

      int num1=0;
      boolean flag = false;

        Scanner s = new Scanner(System.in);

        System.out.println();
        System.out.println("=== Prime Number Checker in Java === ");
        System.out.println();

         System.out.print("Give a Number : ");
         num1 = s.nextInt();

         for(int i = 2; i <= num1/2; ++i)
         {

             if(num1 %  i == 0)
             {
                 flag = true;
                 break;
             }
         }

         if (!flag) {
System.out.println();
             System.out.println("The given number " + num1 + " is a prime number.");
}
         else {
System.out.println();
                 System.out.println("The given number " + num1 + " is not a prime number.");
}
System.out.println("\n");
System.out.println("\t End of Program");
               System.out.println();
}
}