$show=/label

Guide on Java String getBytes​

SHARE:

A quick guide to learn about String getBytes​ method in Java, Example programs on getBytes​() method.

1. Overview:

Encodes the current String into a sequence of bytes using the platform's default charset, storing the result into a new byte array.

This method has 4 overloaded methods.

public byte[] getBytes()
public void getBytes​(int srcBegin, int srcEnd, byte[] dst, int dstBegin) --> This is @Deprecated
public byte[] getBytes​(String charsetName) throws UnsupportedEncodingException
public byte[] getBytes​(Charset charset)



Java String getBytes

2. Supported Charset Names:

Every implementation of the Java platform is required to support the following standard charsets. Consult the release documentation for your implementation to see if any other charsets are supported. The behavior of such optional charsets may differ between implementations.

US-ASCII: Seven-bit ASCII, a.k.a. ISO646-US, a.k.a. the Basic Latin block of the Unicode character set
ISO-8859-1: ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1
UTF-8: Eight-bit UCS Transformation Format
UTF-16BE: Sixteen-bit UCS Transformation Format, big-endian byte order
UTF-16LE: Sixteen-bit UCS Transformation Format, little-endian byte order
UTF-16: Sixteen-bit UCS Transformation Format, byte order identified by an optional byte-order mark

3. Examples:

We will learn example programs on all overloaded methods of getBytes.

In all our examples, we will use the String object as below described. All these explained examples getBytes method returns byte array.

String string = "w3schools";

3.1 getBytes()

Encodes this String into a sequence of bytes using the platform's default charset, storing the result into a new byte array.

The behavior of this method when this string cannot be encoded in the default charset is unspecified. The CharsetEncoder class should be used when more control over the encoding process is required.

byte[] bytes = string.getBytes();

Output:

1195111599104111111108115

Here default charset is used for string encoding.

3.2 getBytes​(String charsetName)

This method as well encodes the string into a sequence of bytes using the provided charsetName and returns the result into a new byte array.

bytes = string.getBytes("UTF-16BE"); // 0119051011509901040111011101080115
bytes = string.getBytes("UTF-16LE"); // 1190510115099010401110111010801150

If the provided charsetName is not in the supported format then will thrown runtime exception saying "java.io.UnsupportedEncodingException". Always should use a valid charsetName as described in "Supported Charset Names" above section 2.

3.3 getBytes​(Charset charset)

This method as well encodes the string into a sequence of bytes using the provided charset and returns the result into a new byte array.

bytes = string.getBytes(Charset.defaultCharset()); // 11905101150990104011101110108011501195111599104111111108115

This method always replaces malformed-input and unmappable-character sequences with this charset's default replacement byte array. The CharsetEncoder class should be used when more control over the encoding process is required.

4. Conclusion

In this article, we discussed what is getBytes method in String class with overloaded methods. We further discussed examples on each method.

All code examples can be found at GitHub.

COMMENTS

BLOGGER: 1
Please do not add any spam links in the comments section.

About Us

Author: Venkatesh - I love to learn and share the technical stuff.
Name

accumulo,1,ActiveMQ,2,Adsense,1,API,37,ArrayList,18,Arrays,24,Bean Creation,3,Bean Scopes,1,BiConsumer,1,Blogger Tips,1,Books,1,C Programming,1,Collection,8,Collections,37,Collector,1,Command Line,1,Comparator,1,Compile Errors,1,Configurations,7,Constants,1,Control Statements,8,Conversions,6,Core Java,149,Corona India,1,Create,2,CSS,1,Date,3,Date Time API,38,Dictionary,1,Difference,2,Download,1,Eclipse,3,Efficiently,1,Error,1,Errors,1,Exceptions,8,Fast,1,Files,17,Float,1,Font,1,Form,1,Freshers,1,Function,3,Functional Interface,2,Garbage Collector,1,Generics,4,Git,9,Grant,1,Grep,1,HashMap,2,HomeBrew,2,HTML,2,HttpClient,2,Immutable,1,Installation,1,Interview Questions,6,Iterate,2,Jackson API,3,Java,32,Java 10,1,Java 11,6,Java 12,5,Java 13,2,Java 14,2,Java 8,128,Java 8 Difference,2,Java 8 Stream Conversions,4,java 8 Stream Examples,12,Java 9,1,Java Conversions,14,Java Design Patterns,1,Java Files,1,Java Program,3,Java Programs,114,Java Spark,1,java.lang,4,java.util. function,1,JavaScript,1,jQuery,1,Kotlin,11,Kotlin Conversions,6,Kotlin Programs,10,Lambda,2,lang,29,Leap Year,1,live updates,1,LocalDate,1,Logging,1,Mac OS,3,Math,1,Matrix,6,Maven,1,Method References,1,Mockito,1,MongoDB,3,New Features,1,Operations,1,Optional,6,Oracle,5,Oracle 18C,1,Partition,1,Patterns,1,Programs,1,Property,1,Python,2,Quarkus,1,Read,1,Real Time,1,Recursion,2,Remove,2,Rest API,1,Schedules,1,Serialization,1,Servlet,2,Sort,1,Sorting Techniques,8,Spring,2,Spring Boot,23,Spring Email,1,Spring MVC,1,Streams,31,String,61,String Programs,28,String Revese,1,StringBuilder,1,Swing,1,System,1,Tags,1,Threads,11,Tomcat,1,Tomcat 8,1,Troubleshoot,26,Unix,3,Updates,3,util,5,While Loop,1,
ltr
item
JavaProgramTo.com: Guide on Java String getBytes​
Guide on Java String getBytes​
A quick guide to learn about String getBytes​ method in Java, Example programs on getBytes​() method.
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3EGqWbf4ptvsSLMIIaD47gSzM2I7-T5uqG16QmT20OECfoRRCQ5FX9IpIRj-luimElKx_Tqll_-QdZAi-iQdHkbalvuYmWxFaWj5-wMsydbLeW9fnRh8X5cT9pJZbXtIp5OA5Lcx0EyM/s320/Java+String+getBytes.PNG
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3EGqWbf4ptvsSLMIIaD47gSzM2I7-T5uqG16QmT20OECfoRRCQ5FX9IpIRj-luimElKx_Tqll_-QdZAi-iQdHkbalvuYmWxFaWj5-wMsydbLeW9fnRh8X5cT9pJZbXtIp5OA5Lcx0EyM/s72-c/Java+String+getBytes.PNG
JavaProgramTo.com
https://www.javaprogramto.com/2019/05/java-string-getbytes.html
https://www.javaprogramto.com/
https://www.javaprogramto.com/
https://www.javaprogramto.com/2019/05/java-string-getbytes.html
true
3124782013468838591
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content