问Java中的Centinel循环

EN

import java.io.*;

public class Test
{
    public static void main(String args[]) throws IOException
    {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);

        String password = "Pass";
        System.out.print("Enter the password: ");
        String input = br.readLine();

        while(input != password)
        {
            System.out.println("Wrong password.\n");
            System.out.print("Enter the password: ");
            input = br.readLine();
        }
    }
}