write a program to accept a number from user and check whether the given number is a prime number or not
Answers
Answered by
4
Question:-
- Write a program to check whether a number is prime or not.
Program:-
import java.util.*;
class Prime
{
static boolean isPrime(int n)
{
int c=0;
for(int i=1;i<=n;i++)
{
if(n%i==0)
c++;
}
return c==2;
}
public static void main(String args[])
{
int n, i;
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number: ");
n=sc.nextInt();
System.out.println((isPrime(n))?"Prime.":"Not Prime. ");
}
}
Answered by
1
import java.util.Scanner;
public class PrimeNumber {
static boolean isPrime(int number) {
for (int i = 2; i < number; i++)
if (number % i = = 0)
return false;
return true;
}
public static void main(String[ ] args) {
System.out.print("Enter a number - ");
int number = new Scanner(System.in).nextInt( );
System.out.printf("Number, %s a Prime", isPrime(number) ? "is" : "not");
}
}
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