这只是Eclipse控制台未处理印度编号系统.当我在外壳中的Linux上运行相同的代码时，我得到:

It's just the Eclipse console not handling the Indian numbering system. When I run that same code on Linux in a shell, I get:

२०१६-०३-१६

如Alexandar所述，将Eclipse控制台编码更改为包含所有必需字符的编码可以解决此问题-但我不清楚yyyy-MM-dd的格式是否适合该语言环境.通常，该格式用于可机读的日期，为此，您应指定Locale.ROOT或Locale.US作为用于设置格式的语言环境.

As noted by Alexandar, changing the Eclipse console encoding to one which includes all the required characters fixes this - but it's unclear to me whether a format of yyyy-MM-dd is appropriate in that locale anyway. Usually that format is used for machine-readable dates, for which you should specify Locale.ROOT or Locale.US as the locale to use for formatting.