Can someone tell whats wrong with this code

Question

Can you find the mistake
import java.util.Scanner;
public class Program
{
public static void main(String[] args) {
Scanner input= new Scanner(System.in);
System.out.println("Enter a number");
int numb=input.nextInt();
for(int i=1;i<100;i++){
int count=0;
while( numb%i==0){
count++ ;}
return count ;}
if(count==2){
System.out.println("A Prime Number");}
else
{System.out.println("Not a prime number");}

input.close();
}}

Answer 1

Just modify this part.

int count=0;
for(int i=1;i<=numb;i++){
if(numb%i==0){
count++ ;}
}

1) count is declared outside because you declared it inside for loop and it will have a scope limited to the loop and cannot be accessed outside.

2) Range should be set to i<=numb because if the number is 7, why would you want to check 7%99? You should check only till numb.

3) while loop should be an if statement.

4) you need not return the count.

Answer 2

Thank you

Answer 3

- please do not write close parenthesis } at end of line
(with the exception of in-line notation)
- do not close standard input stream