random.java

import javax.swing.*;
import java.io.FileWriter;
import java.io.IOException;

public class rand {
	public static void main(String[] args) {
		//Xf=(a*Xi+b)%m;
		double a = 25136;
		double Xi;
		double m = 750000;
		double b = 25256;
		double Xf;
		double i;
		Xi=entrada("Xi");
		i=entrada("Quantos números serão gerados?");
		
		try{
			FileWriter writer = new FileWriter("c:\\test.csv");
			writer.append("Numero");
			writer.append(',');
			writer.append("Valor");
			writer.append("\n");
			for(int cont = 1;cont<=i;cont++){
				Xf=(a*Xi+b)%m;
				Xi=Xf;
				writer.append(cont + "");
				writer.append(',');
				writer.append(Xf + "");
				writer.append("\n");
				//JOptionPane.showMessageDialog(null, Xf);
				
				
			}
			writer.flush();
		    writer.close();
			
		}
		catch(IOException e){
			e.printStackTrace();
		}
		JOptionPane.showMessageDialog(null, "Pronto! arquivo c: test.csv criado!");
		
				
	}
	
	public static double entrada(String var){
		double ent;
		ent = Double.parseDouble(JOptionPane.showInputDialog("entre com o valor de +"+var));
		return ent;
	}
	

	
}