그만큼 자바 문자열 분할() 메소드는 이 문자열을 주어진 정규식에 대해 분할하고 char 배열을 반환합니다.
내부 구현
public String[] split(String regex, int limit) { /* fastpath if the regex is a (1)one-char String and this character is not one of the RegEx's meta characters '.$|()[{^?*+\', or (2)two-char String and the first char is the backslash and the second is not the ascii digit or ascii letter. */ char ch = 0; if (((regex.value.length == 1 && '.$|()[{^?*+\'.indexOf(ch = regex.charAt(0)) == -1) || (regex.length() == 2 && regex.charAt(0) == '\' && (((ch = regex.charAt(1))-'0')|('9'-ch)) <0 0 && ((ch-'a')|('z'-ch)) < 0)) (ch character.max_low_surrogate)) { int off="0;" next="0;" boolean limited="limit"> 0; ArrayList list = new ArrayList(); while ((next = indexOf(ch, off)) != -1) { if (!limited || list.size() <limit 0 - 1) { list.add(substring(off, next)); off="next" + 1; } else last one assert (list.size()="=" limit 1); value.length)); break; if no match was found, return this (off="=" 0) new string[]{this}; add remaining segment (!limited || list.size() && list.get(resultsize 1).length()="=" resultsize--; string[] result="new" string[resultsize]; list.sublist(0, resultsize).toarray(result); pattern.compile(regex).split(this, limit); < pre> <hr> <h3>Signature</h3> <p>There are two signature for split() method in java string.</p> <pre> public String split(String regex) and, public String split(String regex, int limit) </pre> <hr> <h3>Parameter</h3> <p> <b>regex</b> : regular expression to be applied on string.</p> <p> <b>limit</b> : limit for the number of strings in array. If it is zero, it will returns all the strings matching regex.</p> <hr> <h3>Returns</h3> <p>array of strings</p> <hr> <h3>Throws</h3> <p> <b>PatternSyntaxException</b> if pattern for regular expression is invalid</p> <hr> <h3>Since</h3> <p>1.4</p> <hr> <h2>Java String split() method example</h2> <p>The given example returns total number of words in a string excluding space only. It also includes special characters.</p> <pre> public class SplitExample{ public static void main(String args[]){ String s1='java string split method by javatpoint'; String[] words=s1.split('\s');//splits the string based on whitespace //using java foreach loop to print elements of string array for(String w:words){ System.out.println(w); } }} </pre> <span> Test it Now </span> <pre> java string split method by javatpoint </pre> <hr> <h2>Java String split() method with regex and length example</h2> <pre> public class SplitExample2{ public static void main(String args[]){ String s1='welcome to split world'; System.out.println('returning words:'); for(String w:s1.split('\s',0)){ System.out.println(w); } System.out.println('returning words:'); for(String w:s1.split('\s',1)){ System.out.println(w); } System.out.println('returning words:'); for(String w:s1.split('\s',2)){ System.out.println(w); } }} </pre> <span> Test it Now </span> <pre> returning words: welcome to split world returning words: welcome to split world returning words: welcome to split world </pre> <h2>Java String split() method with regex and length example 2</h2> <p>Here, we are passing split limit as a second argument to this function. This limits the number of splitted strings.</p> <pre> public class SplitExample3 { public static void main(String[] args) { String str = 'Javatpointtt'; System.out.println('Returning words:'); String[] arr = str.split('t', 0); for (String w : arr) { System.out.println(w); } System.out.println('Split array length: '+arr.length); } } </pre> <pre> Returning words: Java poin Split array length: 2 </pre></limit></0> 매개변수
정규식 : 문자열에 적용할 정규식입니다.
icloud 사진에 액세스하는 방법
한계 : 배열의 문자열 수에 대한 제한입니다. 0이면 정규식과 일치하는 모든 문자열을 반환합니다.
보고
문자열 배열
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패턴구문예외 정규식 패턴이 잘못된 경우
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1.4
Java 문자열 분할() 메소드 예
주어진 예제는 공백만 제외하고 문자열의 총 단어 수를 반환합니다. 특수문자도 포함되어 있습니다.
public class SplitExample{ public static void main(String args[]){ String s1='java string split method by javatpoint'; String[] words=s1.split('\s');//splits the string based on whitespace //using java foreach loop to print elements of string array for(String w:words){ System.out.println(w); } }} 지금 테스트해보세요 java string split method by javatpoint
정규식 및 길이 예제가 포함된 Java 문자열 분할() 메서드
public class SplitExample2{ public static void main(String args[]){ String s1='welcome to split world'; System.out.println('returning words:'); for(String w:s1.split('\s',0)){ System.out.println(w); } System.out.println('returning words:'); for(String w:s1.split('\s',1)){ System.out.println(w); } System.out.println('returning words:'); for(String w:s1.split('\s',2)){ System.out.println(w); } }} 지금 테스트해보세요 returning words: welcome to split world returning words: welcome to split world returning words: welcome to split world
정규식 및 길이 예제 2를 사용하는 Java 문자열 분할() 메서드
여기서는 이 함수에 대한 두 번째 인수로 분할 제한을 전달합니다. 이는 분할된 문자열의 수를 제한합니다.
public class SplitExample3 { public static void main(String[] args) { String str = 'Javatpointtt'; System.out.println('Returning words:'); String[] arr = str.split('t', 0); for (String w : arr) { System.out.println(w); } System.out.println('Split array length: '+arr.length); } } Returning words: Java poin Split array length: 2