How to create a string with the StringBuilder class in java

This article focuses on "how to use the StringBuilder class in java to create a string", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to create a string with the StringBuilder class in java".

1. Stitching strings will build new String objects, which is time-consuming and space-consuming. Using the StringBuilder class can be avoided.

2. To build an empty string builder, when you need to add some content, call the append method, and call the toString method to get a String object when the string construction is complete.

Example

/ / first build an empty string builder: StringBuilder builder = new StringBuilder (); / / call the append method builder.append (ch) when you need to add some content; / / add a single characterbuilder.append (str); / / add a string// and call the toString method to get a String object String completedString = builder.toString () when the string construction is complete At this point, I believe you have a deeper understanding of "how to use the StringBuilder class in java to create a string". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!