Question

我试图编写以下代码，询问用户他们的用户名和密码：

public static void main(String[] argv) {
        Console console = System.console();
        String USER = console.readLine("Username: ");
        char[] PASSWORD = console.readPassword("Enter password");  
        Arrays.fill(PASSWORD, ' ');
   }

但是，我收到以下错误：

nameless@nameless:~/Desktop/File$ Console console = System.console();
bash: syntax error near unexpected token `('
nameless@nameless:~/Desktop/File$ String USER = console.readLine("Username: ");
bash: syntax error near unexpected token `('
nameless@nameless:~/Desktop/File$ char[] PASSWORD = console.readPassword("Enter password");  
bash: syntax error near unexpected token `('
nameless@nameless:~/Desktop/File$ Arrays.fill(PASSWORD, ' ');

附注：我试图用它来在Oracle SQL中输入数据库。

Answer 1

我想您可以使用本机扫描程序而不是控制台

来实现相同的功能

尝试这可以是任何帮助。

public static void main( String[] args ) {

public static void main( String[] args ) {

    try (Scanner scanner = new Scanner( System.in );) {

        System.out.println( "Username: " );
        String USER = scanner.nextLine();

        System.out.println( "Enter password" );
        String PASSWORD = scanner.nextLine();

        Arrays.fill( PASSWORD.toCharArray(), ' ' );

    } catch ( Exception e ) {

        e.printStackTrace();

    }
}

尝试使用控制台时出现意外的令牌错误

1 个答案: