在Java中从CharSequence转换为String

Question

Suppose I want to convert a CharSequence to a String in Java.

Which option (1 or 2) is better and why?

CharSequence source = "some text";
String someText1 = (String)source; // 1
String someText2 = source.toString(); // 2

Answer 1

＃1甚至不适用于String以外的CharSequence实现，因此＃2实际上是您唯一的选择。

Answer 2

The best option is behind Door #3:

String someText = String.valueOf(source);

Because that will handle the case where source is null .