Java-2: Write a program to generate first n prime numbers.

Lab 2

AIM: Write a program to generate first n prime numbers.

NPrimeNumbers.java

import java.util.Scanner;
class NPrimeNumbers
{
    public static void main(String arg[])
    {
        int i,j,flag,number;
        Scanner sc=new Scanner(System.in);
        System.out.print("Enter Number to Generate Prime Number: ");
        number=sc.nextInt();
        System.out.println("Prime Numbers are...");
        for(i=1;i<=number;i++)
        {
            flag=0;
            for(j=2;j<=i/2;j++)
            {
                if(i%j==0)
                {
                    flag++; //flag=1;
                    break;
                }
            }
            if(flag==0)
            {
                System.out.println(i);
            }
        }
    }
}

Output

Prime numbers output by practical server

Note: Please Try to Yourself.

Happy Coding :)