The length is just text.length(). Checking for a \0 terminator is a C-ism. Java doesn't terminate strings with NUL.
W3Schools
w3schools.com › java › ref_string_length.asp
Java String length() Method
Java Examples Java Videos Java Compiler Java Exercises Java Quiz Java Code Challenges Java Practice Problems Java Server Java Syllabus Java Study Plan Java Interview Q&A ... The length() method returns the length of a specified string.
GeeksforGeeks
geeksforgeeks.org › java › java-string-length-method-with-examples
Java String length() Method - GeeksforGeeks
December 23, 2024 - The length() method returns the number of characters present in the string.
how to write java string length method code? - Stack Overflow
what is the wrong of the following code , i am trying to write the length method source code , i tried it with c++ ( same logic i mean ) and it worked , but here it give me the below exception erro... More on stackoverflow.com
Internal exception: java.io.IOException: The received string length longer than maximum (36>16)
Are you using a hacked client? Because if you use one and use an username longer then 16 characters the game will crash for all the other players. More on reddit.com
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February 28, 2014Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
This java error occurs when you are trying to do a String operation (in this case, checking the length) while the value is not set (is null). More on reddit.com
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February 15, 2022What is the time complexity of this algorithm?
Careful! String concatenation (for example, test += str.charAt(i)) is a linear operation because Java strings are immutable. So you are copying the entire test string to a new buffer, adding the new character, and forming the new string. Use a StringBuilder — now addition of a character can be done in constant time. More on reddit.com
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February 21, 202101:48
Java String length() method | How to get a String length in Java?
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JAVA PROGRAM TO FIND LENGTH OF STRING WITHOUT USING LENGTH() METHOD ...
Codecademy
codecademy.com › docs › java › strings › .length()
Java | Strings | .length() | Codecademy
June 22, 2025 - Returns the length or number of characters in a string.
TheServerSide
theserverside.com › blog › Coffee-Talk-Java-News-Stories-and-Opinions › Find-Java-String-Length-Example-Tutorial
How to find the length of a Java String
Java's String.length() method returns the number of UTF-16 code units stored in a string.
Published: August 14, 2026
Top answer 1 of 4
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The length is just text.length(). Checking for a \0 terminator is a C-ism. Java doesn't terminate strings with NUL.
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As stated in this SO,
Strings in Java do NOT have a NULL terminator as in C, so you need to use the length() method to find out how long a string is.
Therefore you can change the condition to
Use with AIwhile (i < text.length())
(If your goal really is to get the length of a string, your function therefore is redundant, as it is already built in)
Programiz
programiz.com › java-programming › library › string › length
Java String length() | Programiz
March 12, 2024 - The length is equal to the number of characters (code units) in the string. class Main { public static void main(String[] args) { String str1 = "Java"; String str2 = ""; System.out.println(str1.length()); // 4 System.out.println("Java".length()); ...
BeginnersBook
beginnersbook.com › 2013 › 12 › java-string-length-method-example
Java String length() Method with examples
This method counts the number of characters in a String including the white spaces and returns the count. ... This method returns an integer number which represents the number of characters (length) in a given string including white spaces.
Software Testing Help
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Java String length() Method With Examples
April 1, 2025 - When you are going to compute the length of a String which has whitespace, special characters, etc., then they will be treated as a character. Every single character has size = 1. Q #3) How to create a String of specified size in Java?
TheServerSide
theserverside.com › blog › Coffee-Talk-Java-News-Stories-and-Opinions › Java-length-vs-length-Whats-the-difference
Java length vs length(): What's the difference?
See how Java handles array sizes and String character counts, why the syntax differs, and which compile errors result from mixing them up. ... The key difference between an array’s length field and Java’s length() method is that the array length field describes the size of an array, while Java’s length() method tells you how many characters a text String contains.
Published: February 3, 2026
Syntaxdb
syntaxdb.com › ref › java › string-length
String Length in Java - SyntaxDB - Java Syntax Reference
String length returns the number of characters in a string.
Upgrad
upgrad.com › home › tutorials › software & tech › string length in java
String length() Method in Java – Syntax, Example & Use Cases
April 30, 2025 - In Java, String is backed by a character array internally. The length of the String is simply the size of that internal array.
Tutorialspoint
tutorialspoint.com › java › lang › string_length.htm
Java - String length() Method
The strings are immutable in Java their values cannot be changed after they are created. Note − The length of the string is nothing but just a count of the characters that are present in the given string, it counts the white spaces as well along with the string characters.
Upgrad
upgrad.com › home › blog › software development › what is string length java? methods to find string length with examples
Explore String Length Java: Key Methods & Use Cases
July 6, 2026 - The .length() method accurately returns the number of char values, which aligns with the expected visible character count here. Also Read: Exploring Java Architecture: A Guide to Java's Core, JVM and JDK Architecture · In Java, you can extract a specific segment of a string using the .substring() method and measure its length using .length().
Educative
educative.io › answers › how-to-find-the-length-of-a-string-in-java
How to find the length of a string in Java
To calculate the length of a string in Java, you can use an inbuilt length() method of the Java string class.
Oracle
docs.oracle.com › javase › 8 › docs › api › java › lang › String.html
String (Java Platform SE 8 )
July 21, 2026 - Constructs a new String by decoding the specified subarray 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 subarray.
iO Flood
ioflood.com › blog › length-of-string-java
How to Find Length of String Java | Effective Methods
July 8, 2024 - Another thing to note is that the length() method will throw a NullPointerException if you try to use it on a null string. Always ensure that your string is not null before trying to find its length. When working with strings in Java, you may come across different types of characters, including Unicode characters.
DataFlair
data-flair.training › blogs › java-string-length-method
Java String length() Method with Examples - DataFlair
May 18, 2026 - The length() method returns an int value, which is the number of Unicode code units in the string. This value ranges from 0 for an empty string to 2,147,483,647 for a string containing the maximum number of Unicode code units.
Simplilearn
simplilearn.com › home › resources › software development › string length in java: determining a string’s length
String Length in Java: Determining a String’s Length
September 13, 2022 - Just like the name suggests, string length in java method returns the length of this string. But is that it? Learn about this method with some examples now.
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Vultr Docs
docs.vultr.com › java › standard library › java › lang › string › length()
Java String length() - Get String Length | Vultr Docs
December 17, 2024 - The length() method in Java is a simple yet essential tool in the programming toolkit. It is part of the String class in Java and is used to determine the number of characters contained in a string.
Jaro Education
jaroeducation.com › home › blog › how to find the length of a string in java
Java String Length Method: Everything You Need to Know
2 weeks ago - Java Operator Explained: Ternary, Bitwise, Logical, and More · To find the string length in Java, the length() method of the String class is used.