Shulou(Shulou.com)06/01 Report--

This article mainly introduces the relevant knowledge of "how to calculate the length of java string". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to calculate the length of java string" can help you solve the problem.

The string of java has a lenth () method that returns a numeric value of type int, which is the length of the string.

String str = "heell W3Cschool"; int len = str.length (); / / use the length method to get the string length (spaces are also calculated) System.out.println (len)

String length has many functions. For example, when passing in a user's mobile phone number and password, you can first determine whether the string length is within the specified range (usually the mobile phone number is 11 digits. The password should be greater than a certain length and consider that the password should be less than the maximum length of the data due to the database). If the following business query is not carried out when the string requirement is not met, the query pressure on the database can be greatly reduced.

This is the end of the introduction to "how to calculate the length of java strings". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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