{"id":126641,"date":"2024-11-18T18:00:48","date_gmt":"2024-11-18T12:30:48","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=126641"},"modified":"2024-11-18T18:13:49","modified_gmt":"2024-11-18T12:43:49","slug":"java-string-split-method","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/java-string-split-method\/","title":{"rendered":"Java String split() Method"},"content":{"rendered":"<p>The split() method in Java splits a String into an array of substrings based on a delimiter. It is beneficial for breaking up Strings into parts for easier processing.<\/p>\n<p>The split() method accepts a regular expression as a parameter and splits the string around matches of the regular expression. The resultant substrings are returned in an array.<\/p>\n<p><strong>For example, splitting a string on whitespace can be done like:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">String str = \"Hello World\";\r\nString[] parts = str.split(\"\\\\s+\"); \/\/ split on whitespace<\/pre>\n<p>This would result in a String array with two elements, &#8220;Hello&#8221; and &#8220;World&#8221;.<\/p>\n<h2>Variants of the split() Method in Java<\/h2>\n<p><strong>There are two main variants of split() in Java:<\/strong><\/p>\n<h3>Variant 1:<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public String[] split(String regex, int limit)<\/pre>\n<p>This variant allows for the specification of a limit on the number of splits performed.<\/p>\n<h4>Parameters:<\/h4>\n<ul>\n<li><strong>regex &#8211;<\/strong> A delimiting regular expression<\/li>\n<li><b>limit &#8211;<\/b> The limit parameter controls the number of times the pattern is applied and, therefore, affects the length of the resulting array.<\/li>\n<\/ul>\n<h4><strong>Returns:<\/strong><\/h4>\n<p>An array of strings is computed by splitting the given string around matches of the given regular expression.<\/p>\n<h4>Exception Thrown:<\/h4>\n<ul>\n<li><strong>PatternSyntaxException &#8211;<\/strong> If the syntax of the regular expression is invalid<\/li>\n<\/ul>\n<p><strong>The limit parameter can take three possible values:<\/strong><\/p>\n<ul>\n<li><strong>Positive Limit &#8211;<\/strong> Splits up to the specified limit as many times as possible. The last element in the array may contain unmatched delimiter characters.<\/li>\n<li><strong>Zero &#8211;<\/strong> Splits all matches of the delimiter. The returned array contains empty strings between contiguous matches of the delimiter.<\/li>\n<li><strong>Negative Limit &#8211;<\/strong> Splits all matches of the delimiter with no limit.<\/li>\n<\/ul>\n<p><strong>Example:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public class SplitExample {\r\n    public static void main(String[] args) {\r\n        \/\/ Input string\r\n        String str = \"Hello-World-Java\";\r\n\r\n        \/\/ Example 1: Limit of 5\r\n        String[] parts1 = str.split(\"-\", 5);\r\n        System.out.println(\"Example 1: Limit of 5\");\r\n        for (String part : parts1) {\r\n            System.out.println(part);\r\n        }\r\n        \/\/ Output: [\"Hello\", \"World\", \"Java\"]\r\n        \r\n        \/\/ Example 2: Limit of 0 (default)\r\n        String[] parts2 = str.split(\"-\");\r\n        System.out.println(\"\\nExample 2: Limit of 0 (default)\");\r\n        for (String part : parts2) {\r\n            System.out.println(part);\r\n        }\r\n        \/\/ Output: [\"\", \"Hello\", \"World\", \"Java\"]\r\n        \r\n        \/\/ Example 3: Negative Limit (no limit)\r\n        String[] parts3 = str.split(\"-\", -1);\r\n        System.out.println(\"\\nExample 3: Negative Limit (no limit)\");\r\n        for (String part : parts3) {\r\n            System.out.println(part);\r\n        }\r\n        \/\/ Output: [\"Hello\", \"World\", \"Java\"]\r\n    }\r\n}<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p><strong>Example 1:<\/strong> Limit of 5<br \/>\nHello<br \/>\nWorld<br \/>\nJava<\/p>\n<p><strong>Example 2:<\/strong> Limit of 0 (default)<br \/>\nHello<br \/>\nWorld<br \/>\nJava<\/p>\n<p><strong>Example 3:<\/strong> Negative Limit (no limit)<br \/>\nHello<br \/>\nWorld<br \/>\nJava<\/p>\n<h3>Variant 2:<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public String[] split(String regex)<\/pre>\n<p>This variant only takes the regular expression to split on.<\/p>\n<h4>Parameters:<\/h4>\n<p><strong>regex &#8211;<\/strong> A delimiting regular expression<\/p>\n<h4>Returns:<\/h4>\n<p>An array of strings is computed by splitting the input string around matches of the given regular expression.<\/p>\n<h4>Exception Thrown:<\/h4>\n<p><strong>PatternSyntaxException &#8211;<\/strong> If the syntax of the regular expression is invalid.<\/p>\n<p>This variant uses a default limit of 0, i.e. it splits all matches of the delimiter.<\/p>\n<p><strong>For example:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public class SplitExample {\r\n    public static void main(String[] args) {\r\n        \/\/ Input string\r\n        String str = \"Hello-World-Java\";\r\n\r\n        \/\/ Splitting the string using \"-\"\r\n        String[] parts = str.split(\"-\");\r\n\r\n        \/\/ Output the resulting array\r\n        for (String part : parts) {\r\n            System.out.println(part);\r\n        }\r\n    }\r\n}<\/pre>\n<p><strong>Output:<\/strong><br \/>\nHello<br \/>\nWorld<br \/>\nJava<\/p>\n<h3>Examples of Using split() Method in Java<\/h3>\n<h4>Example 1: Split with Small Limit<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public class SplitExample {\r\n  public static void main(String[] args) {\r\n    String str = \"apple#orange#banana\";\r\n    String[] fruits = str.split(\"#\", 2); \r\n\r\n    for (String fruit : fruits) {\r\n      System.out.println(fruit);\r\n    }\r\n  }\r\n}<\/pre>\n<p><strong>Output:<\/strong><br \/>\napple<br \/>\norange#banana<\/p>\n<h4>Example 2: Split with Large Limit<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public class SplitExample {\r\n  public static void main(String[] args) {\r\n    String str = \"one-two-three-four-five\";\r\n    String[] parts = str.split(\"-\", 10);\r\n\r\n    for (String part : parts) {\r\n      System.out.println(part);\r\n    }\r\n  }\r\n}<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p>one<br \/>\ntwo<br \/>\nthree<br \/>\nfour<br \/>\nfive<\/p>\n<h4>Example 3: Split with Negative Limit<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public class SplitExample {\r\n  public static void main(String[] args) {\r\n    String str = \"a,b,c,d,e\";\r\n    String[] parts = str.split(\",\", -1);\r\n\r\n    for (String part : parts) {\r\n      System.out.println(part);\r\n    }\r\n  }\r\n}<\/pre>\n<p><strong>Output:<\/strong><br \/>\na<br \/>\nb<br \/>\nc<br \/>\nd<br \/>\ne<\/p>\n<h4>Example 4: Split with Regular Expression<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public class SplitExample {\r\n  public static void main(String[] args) {\r\n    String str = \"bread,milk,eggs\";\r\n    String[] items = str.split(\",\");\r\n\r\n    for (String item : items) {\r\n      System.out.println(item);\r\n    }\r\n  }\r\n}<\/pre>\n<p><strong>Output:<\/strong><br \/>\nbread<br \/>\nmilk<br \/>\neggs<\/p>\n<h4>Example 5: Split with Regex and Negative Limit<\/h4>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">public class SplitExample {\r\n  public static void main(String[] args) {\r\n    String str = \"2022-11-02\";\r\n    String[] parts = str.split(\"-\", -1);\r\n\r\n    for (String part : parts) {\r\n      System.out.println(part);\r\n    }\r\n  }\r\n}<\/pre>\n<p><strong>Output:<\/strong><br \/>\n2022<br \/>\n11<br \/>\n02<\/p>\n<h3>Conclusion<\/h3>\n<p>In summary, Java&#8217;s split() method is a versatile tool for breaking down strings into substrings based on user-defined delimiters or regular expressions. This method encompasses two primary variants: one that allows you to specify a limit on the number of splits and the other that automatically sets the limit to 0 for maximum splitting.<\/p>\n<p>By mastering these variants and exploring the examples provided, you can efficiently handle string manipulation in Java to cater to your specific processing requirements. Whether you need to split a string with a constrained limit, an extensive limit, a negative limit, or utilize regular expressions, the split() method empowers you with flexibility and adaptability in string processing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The split() method in Java splits a String into an array of substrings based on a delimiter. It is beneficial for breaking up Strings into parts for easier processing. The split() method accepts a&#46;&#46;&#46;<\/p>\n","protected":false},"author":86671,"featured_media":134362,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[7345,31255,31250,31253,31078,8152,31254,31256,31251,31252],"class_list":["post-126641","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-java","tag-java-split-method","tag-java-string-split-method","tag-java-string-split-method-with-examples","tag-java-tutorials","tag-learn-java","tag-split-method","tag-split-method-in-java","tag-string-split-method","tag-string-split-method-in-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Java String split() Method - DataFlair<\/title>\n<meta name=\"description\" content=\"split() method in Java is a versatile tool for breaking down strings into substrings based on user-defined delimiters or regular expressions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/java-string-split-method\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java String split() Method - 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