What is the method for truncating a string in StringUtils?

2 years ago
Noah Thompson
1 minute

In the Apache Commons Lang library, there is a class called StringUtils that offers numerous string manipulation methods, including string truncation.

There are commonly used methods for extracting substrings, such as:

  1. Extract a part of the string starting at position “start” and ending at position “end”.

For example, calling StringUtils.substring(“Hello World”, 6, 11) will return “World”.

  1. Return the part of the string after a specified separator.

For example, StringUtils.substringAfter(“Hello World”, ” “) will return “World”.

  1. Return the substring of the input string str before the first occurrence of the separator.

For example, StringUtils.substringBefore(“Hello World”, ” “) returns “Hello”.

  1. extract the substring enclosed by open and close characters from the given string

StringUtils.substringBetween(“Hello [World]”, “[“, “]”) will result in “World”.

These methods can meet most common needs for string truncation.

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