import java.io.Console;

public class ConsoleTest {

    //用java.io.Console类输入
    public static void main(String[] args) {
        Console con = System.console();
        if (con != null) {
            String user = new String(con.readLine("Enter username: "));
            String pwd = new String(con.readPassword("Enter passw0rd: "));
            con.format("Username is : %s \n", user);
            con.printf("Pawwword is : " + pwd + "\n");
        }
    }
}