How to remove spaces in characters by Java

This article mainly introduces "how to remove spaces in characters by Java". In daily operation, I believe many people have doubts about how to remove spaces in characters by Java. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to remove spaces in characters by Java". Next, please follow the editor to study!

There are two common ways to remove string spaces in Java.

1.trim method

Public String trim () only removes the spaces at both ends of the string, but cannot remove the spaces in the middle of the string. The return value is the string.

String str = "wan g"; str.trim (); / / returns "wan g". The strings on both sides are replaced.

2.replace method

Public String replace (char oldChar,char newChar) replaces oldChar with newChar, and the return value is a string

String str = "wang"; str.replace (","); / / returns "wang", where all the spaces are replaced, and the study on "how to remove spaces in characters by Java" is over. I hope to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!