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1. www.w3schools.com › java › ref_string_replaceallJava String replaceAll() Method - W3Schools

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   The replaceAll() method replaces the first match of a regular expression in a string with a new substring. Replacement strings may contain a backreference in the form $n where n is the index of a group in the pattern.

2. www.javatpoint.com › java-string-replaceallJava String replaceAll() method - javatpoint

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   • Java String replaceAll() Example: Replace Character
   • Java String replaceAll() Example: Replace Word
   • Java String replaceAll() Example: Remove White Spaces
   • Java String replaceAll() Method Example 4
   • Java String replaceAll() Method Example 5
   • Java String replaceAll() Method Example 6

   Let's see an example to replace all the occurrences of a single character. FileName:ReplaceAllExample1.java Output:

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   Let's see an example to replace all the occurrences of a single word or set of words. FileName:ReplaceAllExample2.java Output:

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   Let's see an example to remove all the occurrences of white spaces. FileName:ReplaceAllExample3.java Output:

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   The replaceAll() method throws the PatternSyntaxException when there is an improper regular expression. Look at the following example. FileName:ReplaceAllExample4.java Output:

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   The replaceAll() method can also be used to insert spaces between characters. FileName:ReplaceAllExample5.java Output:

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   Even the null regular expression is also not accepted by the replaceAll() method as the NullPointerException is raised. FileName:ReplaceAllExample6.java Output:

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3. www.geeksforgeeks.org › java-string-replaceall-methodJava String replaceAll() Method - GeeksforGeeks

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   Aug 20, 2023 · The String replaceAll method in Java searches for a specified string or a specified value, or a regex expression by virtue of which has the same suggests returns a new string with related characters.

4. www.programiz.com › library › stringJava String replaceAll() - Programiz

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   The replaceAll() method replaces each substring that matches the regex of the string with the specified text. Example. class Main { public static void main(String[] args) { String str1 = "Java123is456fun"; // regex for sequence of digits . String regex = "\\d+"; // replace all occurrences of numeric // digits by a space.

5. www.baeldung.com › string › replace-allJava.String.replaceAll() | Baeldung

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   May 11, 2024 · The method replaceAll () replaces all occurrences of a String in another String matched by regex. This is similar to the replace () function, the only difference is, that in replaceAll () the String to be replaced is a regex while in replace () it is a String.

6. howtodoinjava.com › java-string-replaceall-exampleJava String replaceAll() with Examples - HowToDoInJava

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   Jan 6, 2023 · The String.replaceAll (regex, replacement) in Java replaces all occurrences of a substring matching the specified regular expression with the replacement string. A similar method replace (substring, replacement) is used for matching the literal strings, while replaceAll () matches the regex.

7. People also ask

   What is Java String replaceAll() method?

   • The Java String replaceAll () method is used to replace all the occurrences of a particular pattern in a String object with the given value. This method accepts a regular expression and a replacement string as parameters, searches the current string for the given regex and replaces the matched substrings with given replacement string.

   Java - String replaceAll() Method - Online Tutorials Library

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   What is the syntax of replaceAll() method in Java?

   • Output: Java is fun The syntax of the replaceAll() method is: Here, string is an object of the String class. The replaceAll() method takes two parameters. The replaceAll() method returns a new string where each occurrence of the matching substring is replaced with the replacement string.

   Java String replaceAll() - Programiz

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   How to replace a substring in Java?

   • To learn more, visit: Java String replace (). If you need to replace only the first occurrence of the matching substring, use the Java String replaceFirst () method. In this tutorial, we will learn about the Java String replaceAll () method with the help of examples.

   Java String replaceAll() - Programiz

   www.programiz.com/java-programming/library/string/replaceall

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   What is replace_STR in Java?

   • replace_str: the string which would replace found expression. This method returns the resulting String. Although the String replaceAll method is very effective in Java but even it comes up with certain exceptions as mentioned below: 1. Invalid regex

   Java String replaceAll() Method - GeeksforGeeks

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8. www.tutorialspoint.com › java › langJava - String replaceAll() Method - Online Tutorials Library

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   The Java String replaceAll () method is used to replace all the occurrences of a particular pattern in a String object with the given value. This method accepts a regular expression and a replacement string as parameters, searches the current string for the given regex and replaces the matched substrings with given replacement string.