jvm - Java虚拟机的默认编码是什么？

Question

如何查看Java虚拟机的默认编码？
如何修改Java虚拟机的默认编码？

Answer 1

The internal encoding of Java virtual machine strings is UTF-16. The default character encoding depends on your system. Can be found via java.nio.charset.Charset.defaultCharset().

It is best not to rely on default values ​​in your program. When you need to construct input and output, you should specify the encoding.

Answer 2

The bottom layer uses unicode and cannot be changed.