Answers for "prime numbers java"

Java

making list of prime numbers java

Now let’s see print first 10 prime numbers in java.

public class FirstTenPrimeNumbers
{
   public static void main(String[] args) 
   {
      int count = 0, number = 0, a = 1, b = 1;  
      while(number < 10)  
      {  
         b = 1;  
         count = 0;  
         while(b <= a)  
         {  
            if(a%b == 0)  
                count++;  
            b++;
         }  
         if(count == 2)  
         {  
            System.out.printf("%d ", a);  
            number++;  
         }  
         a++;  
      }
   }
}

Posted by: Guest on October-25-2020

Source

prime in java

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

        int num = 29;
        boolean flag = false;
        for(int i = 2; i <= num/2; ++i){
            if(num % i == 0){
                flag = true;
                break;
            }
        }

        if (!flag)
            System.out.println(num + " is a prime number.");
        else
            System.out.println(num + " is not a prime number.");
}}
Source:www.progra

Posted by: Guest on September-08-2020

how to check if number prime in java

public class PrimeNumberInJava
{
   public static void main(String[] args)
   {
      int a, b = 0, flag = 0;
      int number = 17;
      b = number / 2;
      if(number == 0 || number == 1)
      {
         System.out.println(number + " is not prime number");
      }
      else
      {
         for(a = 2; a <= b; a++)
         {
            if(number % a == 0)
            {
               System.out.println(number + " is not prime number.");
               flag = 1;
               break;
            }
         }
         if(flag == 0)
         {
            System.out.println(number + " is prime number.");
         }
      }
   }
}

Posted by: Guest on October-25-2020

Source

-1

primenumbers java

It will display the prime numbers between 1 and 100.

class PrimeNumbers
{
   public static void main (String[] args)
   {		
       int i =0;
       int num =0;
       //Empty String
       String  primeNumbers = "";

       for (i = 1; i <= 100; i++)         
       { 		  	  
          int counter=0; 	  
          for(num =i; num>=1; num--)
	  {
             if(i%num==0)
	     {
 		counter = counter + 1;
	     }
	  }
	  if (counter ==2)
	  {
	     //Appended the Prime number to the String
	     primeNumbers = primeNumbers + i + " ";
	  }	
       }	
       System.out.println("Prime numbers from 1 to 100 are :");
       System.out.println(primeNumbers);
   }
}

Posted by: Guest on December-10-2020

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