Thread: Error ? Jgrasp ...

The question is....
Write a program that, given an integer input, can display whether the input is a prime number or not. To do this, you must define a method named isPrime that receives an integer as its parameter and will return true if the integer is a prime number. Otherwise, it will return false. Your program will then call this method for the displaying purpose.

This is my code...
import java.util.Scanner;
public class main1 {

public static void main(String[] args) {

Scanner abc;
abc = new Scanner (System.in);
int input;
int divide = 2;
int count=0;


System.out.println("Please enter an interger to determine if it is prime");
input = abc.nextInt();


for (int x=1; x < input; x++) {
if ((input%divide) == 0)
count += 1;
divide = divide + 1;
}

if (count == 0)
System.out.println("It is a prime number");
else
System.out.println("It is not a prime number");
}
}


but the question if different with my answer right?
SO what should i write for this question...

In JGRASP !! not C or C++ ..

THANKS !!!!!!

Hello.
First, do you know what a prime number is?
Your logic says you don't.

Syed.

PRIME Number is one which is divide only by it self and 1. now make your logic to find the Prime number . but the programme should be look like this

int input;
Scanner myscan = new Scanner(System.in);
input = myscan.nextInt();
 
if(isPrime(input))
System.out.print("This is Prime Number");
else
System.out.print("Not Prime");
 
public boolean isPrime(int a){
if( // PRIME Number Logic  ) return true;
else return false
}