How to find prime number from a input array .







      In this  java program   we  will    take   a  array size  then   input  array . The program
       will  tell  us   which  number  is prime  or which  is not . Program is  simply taking
        two loop  to compare .






import java.util.Scanner;

public class Primeinarray {

public static void main (String[] args){
   
 
System.out.println("Enter the elements of the array length: ");

 
    Scanner in = new Scanner (System.in);
    int[] array =new int[in.nextInt()];
   
 
    System.out.println("Enter the elements of the array: ");
      for(int i=0;array.length; i++)
    {
        array[i] = in.nextInt();
    }
    //loop through the numbers one by one
    boolean   isPrime = true;

           for( int i=0 ; i<array.length; i++) {
              if (array[i]==2) {

               
          System.out.println("2 is  prime number")

       }
         
           for(int j=2; j<array[i]; j++){
           if(array[i]%j==0){
                isPrime = false;
                
                System.out.println( array[i] +"Not an prime number"); 
                break;
                
                 }  else {
       
              System.out.println( array[i] +" prime number"); 
       
                    break ;
                           }
          
                 }
           }
     }
}
Enter the elements of the array length: 




Enter the elements of the array length: 
3
Enter the elements of the array: 
3
2
4
3 prime number
2 is  prime number
4Not an prime number

How to find prime number from a input array . How to find prime number from a input array . Reviewed by Mukesh Jha on 12:53 AM Rating: 5

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