java Occultare la password durante la digitazione

Posted 2021-05-08

import java.io.*;
 public class HidePasswordFromCommandLine extends Thread {
 boolean stopThread= false;
 boolean hideInput= false;
 boolean shortMomentGone= false;
 public void run() {
 try {
 sleep(500);
 } catch (InterruptedException e) {}
 shortMomentGone= true;
 while (!stopThread) {
 if (hideInput) {
 System.out.print("\b*");
 }
 try {
 sleep(1);
 } catch (InterruptedException e) {}
 }
 }
 public static void main(String[] arguments) {
 String name= "";
 String password= "";
 HidePasswordFromCommandLine hideThread= new HidePasswordFromCommandLine();
 hideThread.start();
 BufferedReader in= new BufferedReader(new InputStreamReader(System.in));
 try {
 System.out.println("Name: ");
 // Aspetta l'immissione dello username e pulisce il buffer della tastiera
 do {
 name= in.readLine();
 }
 while (hideThread.shortMomentGone == false);
 //
 // Nasconde il thread e sovrascrive l'input con "*"
 hideThread.hideInput= true;
 // Legge la password
 System.out.println("\nPassword:");
 System.out.print(" ");
 password = in.readLine();
 hideThread.stopThread= true;
 }
 catch (Exception e) {}
 System.out.print("\b \b");
 // Solo per testing, eliminare!
 System.out.println("\n\nLogin= " + name);
 System.out.println("Password= " + password);
 }
 }