Shulou(Shulou.com)06/03 Report--

This article introduces the relevant knowledge of "what is a java hollow string". In the operation of actual cases, many people will encounter such a dilemma. Then let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. The empty string "" is a string of length 0.

2. An empty string is a Java object with its own string length (0) and content (empty). The String variable can also store a special value called null, which indicates that there are currently no objects associated with the variable.

Example

String str = "\ r\ n\ t"; System.out.println (str + "" + StringUtils.isBlank (str)); str.replace ("\ r", "); str.replace ("\ t ","); str.replace ("\ n", "); System.out.println (str +"+ StringUtils.isBlank (str)); and" what is a java hollow string ". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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