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Java String length() Method

Java Study Plan Java Interview Q&A Java Certificate ... The length() method returns the length of a specified string. Note: The length of an empty string is 0. ... If you want to use W3Schools services as an educational institution, team ...

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A String in Java is actually an object, which means it contains methods that can perform certain operations on strings. For example, you can find the length of a string with the length() method:

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People also ask

How do you find the length of a String in Java?

In Java, you find the length of a String using the length() method. It returns an integer representing the number of characters, including spaces and symbols, in the string. Example: str.length();

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String length() Method in Java – Syntax, Example & Use Cases

How do you find the length of a String array in Java?

To find the number of elements in a String array, use the .length property without parentheses. Example: stringArray.length; This counts the number of elements, not characters.

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String length() Method in Java – Syntax, Example & Use Cases

What is the difference between String length() and array length in Java?

In Java, strings use the length() method with parentheses, while arrays use the length property without parentheses. Both provide the count of elements or characters.

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String length() Method in Java – Syntax, Example & Use Cases

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String length() in java - W3schools

August 28, 2014 - * @author w3spoint */ public void stringLengthTest(){ System.out.println(str.length()); } } public class StringLengthExample { public static void main(String args[]){ //creating TestString object TestString obj = new TestString(); //method call obj.stringLengthTest(); } } ... Download this example. Next Topic: trim() String functions in java with example.

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Java String Length

September 1, 2008 - The length is equal to the number of 16-bit Unicode characters in the string. ... This method returns the the length of the sequence of characters represented by this object. import java.io.*; public class Test { public static void main(String ...

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Java String length() Method

abstract boolean break byte case catch char class continue default do double else enum extends final finally float for if implements import instanceof int interface long new package private protected public return short static super switch this throw throws try void while Java String Methods Java Math Methods ... public class MyClass { public static void main(String[] args) { String txt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; System.out.println(txt.length()); } } Run example »

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Java String length() Method - W3schools

August 28, 2014 - class TestString{ String str = "www.w3schools.blog"; public void stringLengthTest(){ System.out.println(str.length()); } } public class StringLengthExample { public static void main(String args[]){ //creating TestString object TestString obj = new TestString(); //method call obj.stringLengthTest(); } } 20 · Java Tutorial ·

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Java String length()

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()); // 4 // length of empty string System.out.p...

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How do I find the Java String length?

The need to find the length of a Java String is a common programming requirement. Learn how to get the size of a Java String and avoid lengthy errors developers often encounter.

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upgrad.com › home › tutorials › software & tech › string length in java

String length() Method in Java – Syntax, Example & Use Cases

October 11, 2024 - Learn how to use the length() method in Java to find the number of characters in a string. Explore syntax, examples, and common use cases for better string handling.

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Java | Strings | .length() | Codecademy

June 22, 2025 - This example uses the .length() method to get the length of a string: ... This example uses the .length() method in conditional statements to check if a password is at least 8 characters long: ... Password is too short.

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length vs length() in Java - GeeksforGeeks

January 4, 2025 - The length() method returns the number of characters present in the string.

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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.

docs.oracle.com › javase › 8 › docs › api › java › lang › String.html

String (Java Platform SE 8 )

October 20, 2025 - The length of the new String is a function of the charset, and hence may not be equal to the length of the subarray. The behavior of this constructor when the given bytes are not valid in the given charset is unspecified. The CharsetDecoder class should be used when more control over the decoding ...

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String Length in Java - SyntaxDB - Java Syntax Reference

String name = "Anthony"; int nameLength = name.length(); System.out.println("The name " + name + " contains " + nameLength + "letters.");

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. Suitable for string objects but not for arrays. Can also be used for StringBuilder and StringBuffer classes.

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Java String length() Method - javatpoint

Java String length() method with method signature and examples of concat, compare, touppercase, tolowercase, trim, length, equals, split, string length in java etc.

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how to write java string length method code? - Stack Overflow

The length is just text.length(). Checking for a \0 terminator is a C-ism. Java doesn't terminate strings with NUL.

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

while (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)

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Java String length() Method With Examples

April 1, 2025 - This tutorial Explains all about the Java String length() method along with Multiple Programming Examples & FAQs to help you understand the concept.

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Java String length() Method with examples

Here we are replacing all the whitespaces with nothing (removing them) using the replace() method and then using the length method on the updated string. public class JavaExample { public static void main(String[] args) { String str = "hi guys this is a string"; //length of the String System.out.println("Length of the String: "+str.length()); //length of the String without white spaces System.out.println("Length of String without spaces: "+ str.replace(" ", "").length()); } }

stackoverflow.com › questions › 34393312 › get-actual-length-of-the-defined-string-in-java

Get actual length of the defined String in Java - Stack Overflow

String s = "\\"; contains only the character \, and since it is a special one, it has to be escaped with the \ character.

In order to obtain a 2-sized String, you can escape two backslashes, like this:

String s = "\\\\";

This one doesn't have the size of 4, but 2, because there are characters (obviously, like the backslash) which are not represented by a single visual element in the editor.

There are also characters, which can be completely invisible when being printed (like the Mongolian vowel separator), but which are represented in a different way in the source (by their Unicode code). For example, the Mongolian vowel separator can be represented as:

String mongolianVowelSeparator = "\u180"; <-- one character only, invisible when printed

So here we have one character only (the U+180E Unicode character), but we used five editor characters to represent it.

Use the CharConverter from DrJava. You could adapt the source code for your project. It has a method that converts all the escaped chars in a string back to the real Java input.

String str1 = "\\";
String str2 = CharConverter.escapeString(str1);
System.out.println(str2.length());   // prints 2