/* * Main.java * * Created on 27 Μάρτιος 2008, 3:28 μμ * * To change this template, choose Tools | Template Manager * and open the template in the editor. * * Sto parathiro dinw enan arithmo * Mou emfanizei ton proto arithmo pou * einai plisiesteros autou pou edwsa */package protos;import javax.swing.JOptionPane; import java.util.Calendar;/** * * @author students */public class Main { static String input(){ return JOptionPane.showInputDialog(null, "Give me a number: "); } static void message(String x){ JOptionPane.showMessageDialog(null, "O " + x + " einai prwtos arithmos!"); } static void message1(String x){ JOptionPane.showMessageDialog(null, "Plisiesteros einai o " + x + " !"); } /** Creates a new instance of Main */ public Main() { } /** * @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here String in = input(); int num = Integer.parseInt(in); int i, j, flag=0; int rem=0, arithmos = 1; for (i=num;i>1;i--){ flag = 0; for (j=2;j<i;j++){ rem = i%j; if (rem==0){ flag = 1; break; } } if (flag==0){ arithmos = i; } if(arithmos!=1){ break; } } if (arithmos == num){ message("" + arithmos); } else{ message1("" + arithmos); } System.exit(0); }}