How to use split in java

The split() method is a Java method that splits a string into substrings based on a specified delimiter. Specify delimiter: Use a regular expression to specify the character or string pattern to split. Call the split() method: Call the split() method on the string you want to split, passing the regular expression as argument. Get split results: The method call returns a String array containing the split substrings.

Usage of split() method in Java

What is the split() method?

The split() method is a Java method used to split a string into substrings based on a specified delimiter.

Syntax:

<code class="java">public String[] split(String regex)</code>

Parameters:

• regex: Regular expression to be used as the delimiter.

Return value:

• A String array containing the split substrings.

How to use split() method:

1. Specify the delimiter: Use regular expressions to specify the string to be Split character or string pattern.
2. Call the split() method: Call the split() method on the string you want to split, passing the regular expression as a parameter.
3. Get the split result: The method call will return a String array containing the split substrings.

Example:

<code class="java">String str = "我,爱,Java";
String[] parts = str.split(",");

// 输出拆分后的子字符串
for (String part : parts) {
    System.out.println(part);
}</code>

Output:

<code>我
爱
Java</code>

Notes:

• The delimiter can be a single character, a sequence of characters, or a regular expression.
• Regular expressions can specify more complex matching patterns, such as finding specific words or patterns.
• If the regular expression is empty or null, the string will be split based on any whitespace characters.

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