java - 将 getPasswordAuthentication 函数转换为 Kotlin

Question

这个问题已经有答案了:

How to create an instance of anonymous class of abstract class in Kotlin? (2 个回答)

已关闭 3 年前。

我想将此代码块从 Java 转换为 Kotlin:

 Session session = Session.getInstance(props,
          new javax.mail.Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("username", "password");
            }
          })

但是我无法正确转换这部分:

 protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("username", "password")
            }

如何进行这种转换？

Answer 1

这是一个匿名类实例。检查object expressions

object : Authenticator() {
    override fun getPasswordAuthentication() : PasswordAuthentication {
        return PasswordAuthentication("username", "password")
    }
}