algoritma prima

import java.util.Scanner;


public class Bilprima {

    /**
     * @param args
     */
    public static void main(String[] args) {
        int min,max,i,j;
        boolean prima;

        Scanner scan = new Scanner(System.in);

        System.out.print("masukkan nilai terendah : ");
        min = scan.nextInt();

        System.out.print("masukkan nilai tertinggi : ");
        max = scan.nextInt();

        //cek kalau bilangan < 2
        if (max < min){
            System.out.print("Nilai tertinggi harus lebih besar dari nilai terendah ");
            return;//akhiri program
        }

        for (i=min; i <max; i++){
            prima = false;
            if (i==2)
                prima = true;
            else
            {
                for(j=2;j<i;j++)
                {
                    if(i%j == 0)
                    {
                        prima = false;
                        break;//keluar dari looping
                    }
                    else
                        prima = true;
                }
            }
            if (prima)//prima true
                {
                System.out.println("Bilangan prima antara angka "+ min +" dan angka"+ max +"adalah :" );
                System.out.println(i+",");
                }

            }



        //priksa isi prima
        if (prima = true)
            System.out.println("Bilangan prima antara");




    }

}