Check Prime Number Using Function in Java

import java.util.*;
class primefuntion
{
    static boolean isprime(int n)
    {
        int i,c=0;
        for(i=1;i<=n;i++)
        {
            if(n%i==0)
            c++;
        }
        if(c==2)
        return true;
        else
        return false;
    }
    public static void main(String args[])
    {
        int a;
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter the value of a");
        a=sc.nextInt();
    if(isprime(a))
    System.out.println("Prime");
    else
    System.out.println("Not prime");
}
}

Comments

Popular posts from this blog

A school has following rules for grading system: a. Below 25 - F b. 25 to 45 - E c. 45 to 50 - D d. 50 to 60 - C e. 60 to 80 - B f. Above 80 - A Ask user to enter marks and print the corresponding grade.

Write Java program to allow the user to input his/her age. Then the program will show if the person is eligible to vote. A person who is eligible to vote must be older than or equal to 18 years old.

A Computer Salesman gets commission on the following basis using Java