The split method of the Java String class splits the given string into substrings given a delimiter. Constructs a new String by decoding the specified array of bytes using the specified charset.The length of the new String is a function of the charset, and hence may not be equal to the length of the byte array.. A non-negative integer specifying a limit on the number of substrings to be included in the array. Using String.split ()¶ The string split() method breaks a given string around matches of the given regular expression. Split String by Backslash. See the section below for the examples with code and output. There are many ways to split a string in Java. This method always replaces malformed-input and unmappable-character sequences with this charset's default replacement string. 1. Mar 24, 2015 Core Java, Examples, Snippet, String comments . Exception in thread "main" java.lang.NullPointerException at java.lang.String.split(String.java:2324) at com.StringExample.main(StringExample.java:11) 2. That is, limit the number of splits in the given string by using the limit argument. Delimiter should be escaped as well. The result is an array of String. In java you can do special string splits as: using a limit to define how many occurrences should be split positive lookahead - keeping the separator at the left side of the split negative lookahead - keeping the separator at the other side of the split More about regex and An example of completely breaking the string by split method. Here is the equivalent String array: Or you can read it from file and Java will escape string for you. The most common way is using the split() method which is used to split a string into an array of sub-strings and returns the new array. This java tutorial shows how to use the split() method of String class of java.lang package. First of all, it’s impossible to have a string like this in Java: "1\2\3". limit Optional. We may specify the maximum number of items returned by using specifying the limit. Java String split() Example Example 1: Split a string into an array with the given delimiter. For demonstrating the Java string split method, a string object is created and assigned a value. It should be escaped like this: "1\\2\\3". This method returns a character array which corresponds to the result of splitting the String object given a java regular expression as a method parameter and the tokens are limited using the method parameter limit. How to split a string in Java using both variants of the split() method: split(String regex) and split(String regex, int limit). The limit is given as int. Java String Split Limit Examples. As an example, suppose we have 4 items in a comma separated String and we pass the value of 2 for the limit parameter: String[] shapes = "Circle,Square,Rectangle,Hexagon".split(",", 2); The Java String split method will only return 2 items, even when there are 4 possible elements. Java String.split(String regex, int limit) ... 会只根据第一个分割分割成2份，如果是6只会分成3份，具体应用跟regex个数有关 regex, int limit)" title="关于String.split(String regex, in. Java program to split a string based on a given token. Any leftover text is not included in the array at all. If provided, splits the string at each occurrence of the specified separator, but stops when limit entries have been placed in the array.