# Json Backslash Problem Java

JSON stands for JavaScript Object Notation. Many projects use JSON for configuration files. It is easy for machines to parse and generate. For example, if you'd like to find out all the last successful build of a given view, you'd realize that the invocation to the remote API of the view won't give you this, and you'd have to recursively call the remote API of each project to find this out. json, and so can be used with. Most commonly this is between client-side JavaScript running in a web browser, and a server-side script running on. The previous example does not work as shown if the NO_BACKSLASH_ESCAPES server SQL mode is enabled. To start viewing messages, select the forum that you want to visit from the selection below. var json-object-name = { string : number_value, } Example. Java™ EE at a Glance. Those backslashes are escape characters. Serializing list is a little tricky since by default the type info is not stored while serializing and deserializing lists. Visual Studio Code supports variable substitution in Debugging and Task configuration files as well as some select settings. zip file download after the line resource-pack= in the server properties file. 2015-12-01 09:29 Sandro Santilli * [r14464] I don't think config. js or native in most modern browsers. Escapes or unescapes a Java or. You need to escape these special characters for before passing JSON string to JSON. Just paste your backslash-escaped text in the form below, press Strip Slashes button, and all backslashes get unescaped. Convert XML to JSON with JavaScript Building Resilient Systems on AWS : Learn how to design and implement a resilient, highly available, fault-tolerant infrastructure on AWS. The previous example does not work as shown if the NO_BACKSLASH_ESCAPES server SQL mode is enabled. a subset of the JavaScript object notation syntax. • A JSON encoder must only produce well-formed JSON text. JSON takes that syntax and makes it generally applicable. As the designers considered that multiple inheritance will to be too complex to manage, but indirectly you can achieve Multiple Inheritance in Java using Interfaces. The callout response, as received, parses as expected. I tried to create a Java Docker image based on this blog post. Windows uses backslashes for paths, while everything else seems to use forward slashes. To start viewing messages, select the forum that you want to visit from the selection below. World's simplest online string and text slash remover tool. A collection of name/value pairs. Here’s how to work with JSON objects, including how to update them once you’ve found them. 2015-12-01 09:29 Sandro Santilli * [r14464] I don't think config. This guide should make that choice easier and should give you a solid understanding of the ecosystem right now. Serialization or de-serializing a java object is straight forwar. Problem with embedded quotes and backslashes in JSON If this is your first visit, you may have to register before you can post. JSON is an open standard format that consists of key-value pairs. First we start by getting the InputStream of the JSON file to be read using getResourceAsStream() method. JSON-LD JSON-LD is a lightweight Linked Data format. I tried adding a THIRD backslash to escape those as well, but the strings didn't change when I examined the Debug logs. How to convert Map to JSON string using Jackson API? Enable JSON pretty print using Jackson API; How to rename JSON properties using Jackson annotations? How to ignore JSON property using Jackson annotations? How to order JSON elements using Jackson annotations? How to ignore json empty or null values using Jackson API in java? How to handle. This Java JSON tutorial focuses. json) library to read or parse JSON file. Hi Mr Anonymous, The NullPointerExcpetion comes because you might have passed the JSON String as a Set Property to EAI JSON Converter, instead pass as Set Value and then in the. 2 in favor of APPLICATION_PROBLEM_JSON since major browsers like Chrome now comply with the specification and interpret correctly UTF-8 special characters without requiring a charset=UTF-8 parameter. [CLOSED] JSON. Such data can also be stored as text, but the JSON data types have the advantage of enforcing that each stored value is valid according to the JSON rules. Note: Refer How to convert Java object to JSON string? page for dependent libraries. For example, escaping a slash (/) with a backslash (\) is valid in JSON, but was not valid in YAML. Welcome to Apache Maven. When calling a RegExp constructor, you have to double each of the two backslashes in the string argument passed to the constructor, like this: "\\\\". One of these is DatatypeConverter. It is easy for machines * to parse and generate. The quickest method of converting between JSON text and a. json, and so can be used with. An alternate method is to load the jar file dynamically to Matlab’s Java classpath, using javaaddpath(‘path\to\json. The JSON format is not to blame for our problems, but it allows us to be sloppy. str print { "timestamp" : { "$regex" : "/\w/"}} JSON print { "timestamp" : { "$regex" : "/w/"}} <= WRONG? str print { "timestamp" : { "$regex" : "/\ w/"}}. Learn more about Solr. • Sort arrays and objects. In general, you can list the possible formats you’ll use to transmit data between computers as: Bytes (Bina. The class comes with a bunch of overloaded parse methods plus some special methods such as parseText , parseFile and others. The JSON Libraries. These provide varying levels of functionality, from the simplest (the default org. 3, many back ported to 3. Their inadequacy is revealed when passing string values that accidentally embed control escape sequences, such as Windows pathnames. They do not throw any exception. It is a drop-in replacement for aeson's \"encode\" function, producing JSON-ByteStrings for human readers. JSON files consist of collections of name. Hello, Within a string "\\" represents a single backslash. JSONObject) or array. Deserializes a JSON string. I am trying to use Newtonsoft. Download BackSlash Linux for free. Serialize a Collection. json (though it's the same problem for any maven. One popular way to read input from stdin is by using the Scanner class and specifying the Input Stream as System. Collaborating JSON files with Node. The bird view of the data flow would be like this Partner 1 sends request for some data with XML data Partner 2 sends requ. If you are still willing to set up your environment for Java programming language, then this section guides you on how to download and set up Java on your machine. The standard module called json can take Python data hierarchies, and convert them to string representations; this process is called. Is there any problem with students seeing faculty naked. compile(pattern); Hope to find an answer. So for me it would be easiest to just get inheritance/ namespaces for Jersey's mapped JSON notation. If you know the schema in advance, use the version that specifies the schema to avoid the extra scan. JSON:API Object. Search Search all Forums Search this Forum Search this Thread Tools Jump to Forum Problem with /tellraw, Minecaft keeps telling me that generated json (which json validators say are valid) as invalid?. There's been a lot of discussion on this topic and it still remains a problem today. Modern web applications often need to parse and generate data in the JSON (JavaScript Object Notation) format. Applying a Namespace During JAXB Unmarshal For some an XML schema is a strict set of rules for how the XML document must be structured. However, we know that the backslash character is an escape character in Java String literals as well. It is easy for humans to read and write. JSON is best alternative to XML when your android app needs to interchange data with your server. You need "meow \\ " in Java to get the string "meow \ " in JSON to get the actual string "meow \ ". Over the last 5-10 years, the JSON format has been one of, if not the most, popular ways to serialize data. simple so a maven artifact under the org. Syntax: json_encode(value, options. Especially in the web development world, you'll likely encounter JSON through one of the many REST APIs, application configuration, or even simple data storage. It is easy for machines to parse and generate. 1BestCsharp blog 6,204,454 views. Of course, PowerShell is no. So I'm thinking the problem with bad request is due to the additional backslash being added at somepoint during the Javascript->Java conversion during the workflow execution. A JSON:API document MAY include information about its implementation under a top level jsonapi member. Android volley is a networking library was introduced to make networking calls much easier, faster without writing tons of code. Deserializing JSON Strings as JavaScript Date Objects April 28, 2016. The only difference between Java strings and Json strings is that in Json, forward-slash (/) is escaped. You can store your jokes as JSON in files and use Gson to unmarshal the Jokes into POJOs. Re: Backslash problem in property file JoachimSauer Jul 11, 2008 12:45 PM ( in response to 807589 ) carrera wrote: I have to remove the backslash because the properties file may be used by other platform apart from java where backslash is not an escape sequence. Our online converter of JavaScript Object Notation format to Keyhole Markup Language format (JSON to KML) is fast and easy to use tool for both individual and batch conversions. pas ( used flags instead of isenum, isbool, islongstring, changed all usage instances ) [-] 2015-09-06: [SV-7998] vCard note property is synchronized newly via. How to transfer binary files (pdf,images etc) in json In my example I am using java for server end but you. JSON is a great data format and it's taken the Internet by storm for a number of good reasons. json) library to read or parse JSON file. It's an escape from the parsing context, that is demanding (what a villain) n to be interpreted as n instead of as a newline. JSON is based on a subset of the JavaScript Programming Language, therefore, JSON also uses backslash as the escape character: A string is a sequence of zero or more Unicode characters, wrapped in double quotes, using backslash escapes. net, php, python, xml, jquery, ruby, c#, perl, jackson. The JsonSerializer converts. See Substitutions for more information. By far the main trouble maker is the belief that by including a. Next In this post,We will see introduction to JSON Java JSON Tutorial Content: JSON Introduction JSON. As described above, a JSON is a string whose format very much resembles JavaScript object literal format. Applying a Namespace During JAXB Unmarshal For some an XML schema is a strict set of rules for how the XML document must be structured. The problem is they're often big and bulky not to mention a bit of an eyesore. dumps() function may be different when executing multiple times. parse() method parses a JSON string, constructing the JavaScript value or object described by the string. This is especially annoying as some JSON libraries escape forward slashed with backslashes. The finer points of platform specific data types should be handled for you in the target language implementation, and you can get back to focusing on the hard parts of your problem instead of matching up fields and data types in your ad hoc JSON encoding and decoding schemes. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. writeValue() – Java Objects to JSON. Make sure that you have followed the tutorials from Chapter 1 on how to install and use IntelliJ IDEA. so that when you output string u get same string else you wont. Request and Response JSON Reference. NET array attribute for collections, and encodes special characters. It is based on the already successful JSON format and provides a way to help JSON data interoperate at Web-scale. APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse. This sample deserializes JSON to an object. Windows filenames used a backslash as a separator, but within Python the backslash had the magic power of an escape character, so every time she wanted a backslash in a filename she had to code two backslashes, like this:. org lists 18 different Java libraries for working with JSON (Flexjson gets a double mention). navigating and editing the JSON as an arbitrary tree of key-value pairs). The following example shows how to use JSON to store information related to. Connect Grails with Oracle 11g Example Configuration I developed a tiny web application in Grails that used HSQLDB by default and was wondering if it is possible to change the database to my Oracle 11g database. Java\jdk1. For example, n by itself is simply a letter, but when you precede it with a backslash, it becomes , which is the newline character. JSON-B will leverage and complement JSON-P (JSR 353). JavaScript String Escape / Unescape. Java String replace(), replaceFirst() and replaceAll() examples: All of these methods are mainly used for replacing a part of String with another string. It is easy for humans to read and write. I ran into this issue while writing some test cases, but setting the sort_keys parameter to true will solve the problem. That JSON string, when converted back to a NSString becomes \/- it looses one of the backslashes in the process. Note: Refer How to convert Java object to JSON string? page for dependent libraries. Enter your data below and Press the Convert button (new option to remove top level root node). In this post, we will see how you can store JSON in SQL Server database. XML is used extensively to underpin various publishing formats. But the version is probably not the problem with. stringify value, replacer, space value any JavaScript value, usually an object or array. Prerequisites. Also I've played around with Jettison for JSON serialization for a bit in the beginning of the current project, but had some weird problems with deeply nested properties, which is why I moved to Jersey. Java/Json Polymorphic serialization & De-Serialization using Jackson. i already was able to fix double-quote by using regeX before passing the json string to the webservice:. There's been a lot of discussion on this topic and it still remains a problem today. Most HackerRank challenges require you to read input from stdin (standard input) and write output to stdout (standard output). Also I've played around with Jettison for JSON serialization for a bit in the beginning of the current project, but had some weird problems with deeply nested properties, which is why I moved to Jersey. Rather than having users constantly writing and debugging code to save complicated data types to files, Python allows you to use the popular data interchange format called JSON (JavaScript Object Notation). If your JSON starts with a curly brace: {then you get returned a single object - a so called root object. As you can see, adding a solved our problem. Useful, free online tool that converts decimal numbers to Gray code binary numbers. ExtJS JSON and Java Struts: I like to use struts action calls, unfortunately the Java JSON toString() method returns JSON suited to Java only, that is with backslash escaped quotations and enclosing double quotes. This example will demonstrate how to convert a json array to a java ArrayList using jackson JSON parser. getmeta Prints out the metadata of an Avro data file. AlarmClock; BlockedNumberContract; BlockedNumberContract. Java, JSON, and Forward Slash. Jackson is a simple java based library to serialize java objects to JSON and vice versa. JSON (JavaScript Object Notation) is a lightweight data-interchange format. Of course, PowerShell is no. Please reply. But because of a strange oversight in the EcmaScript specs, there is no standard way of describing dates in JSON. Each request is processed by fetching multiple rows from a simple database table, converting the rows to in-memory objects, modifying one attribute of each object in memory, updating each associated row in the database individually, and then serializing the list of objects as a JSON response. In this tutorial, I’ll show you how to write JSON data to a file using JSON. The abbreviation of JSON is JavaScript Object Notation. Escapes or unescapes a JavaScript string removing traces of offending characters that could prevent interpretation. NET from CodePlex or install using NuGet. The Commons Proper is a place for collaboration and sharing, where developers from throughout the Apache community can work together on projects to be shared by the Apache projects and Apache users. An object is an unordered collection of zero or more name/value pairs. NET objects into their JSON equivalent and back again by mapping the. Solr is highly reliable, scalable and fault tolerant, providing distributed indexing, replication and load-balanced querying, automated failover and recovery, centralized configuration and more. 2014-05-06 07:43 robe * doc/installation. JSON supports two widely used (amongst programming languages) data structures. 4: cannot satisfy. Java tried to escape your string as " " is part of your string not actual quotes which are used in start and end. (Java) JSON Escape and Unescape a String. simple vs GSON vs Jackson vs JSONP For the benchmark tests, we looked at four major JSON libraries for Java: JSON. Discover smart, unique perspectives on Json and the topics that matter most to you like javascript, api, programming, web development, and swift. Those backslashes are escape characters. It is easy for humans to read and write. How to replace Double Backslash in single backslash. Variables Reference. Andrew said Excellent code. My session explained the four different APIs that are included […]. While I was working on the Timeline card JSON outputs, I remembered an interesting rule for escaping forward slashes in JSON. In addition, we will learn how to format multi-line text so that it is more readable. {"bugs":[{"bugid":633540,"firstseen":"2017-10-05T09:50:30. Nexial Jsonpath JSON (/dʒeɪsən/ JAY-sən), short for JavaScript Object Notation, is an open-standard file format that uses human-readable text to transmit data objects consisting of name–value pairs and array data types. JSON은 완벽하게 언어로 부터 독립적이지만 C-family 언어 - C, C++, C#, Java, JavaScript, Perl, Python 그외 다수 - 의 프로그래머들에게 친숙한 관습을 사용하는 텍스트 형식이다. * version) as it was the most avidly requested feature. Serialize an Object. ExtJS JSON and Java Struts: I like to use struts action calls, unfortunately the Java JSON toString() method returns JSON suited to Java only, that is with backslash escaped quotations and enclosing double quotes. Since a JSON structure is usually anonymous and doesn't necessarily have a "root member object" JSONPath assumes the abstract name$ assigned to the outer level object. Jackson maven dependency. JSON is a popular data exchange format between browsers and web servers because the browsers can parse JSON into JavaScript objects natively. JSON has evolved into the browser and mobile space which started using XML but have changed over the last decade to be almost entirely JSON based. Escaping Using Backslash. How to use HttpClient to post Json data to WebService in Windows Store apps The sample shows how to use HttpClient post Json data in windows 8 metro application. The problem is that a backslash is added before each double quote, and the system that gets this JSON when I callout can't process it. Using the same HTTP requests as previously, we see the following console output, where the x-www-url-formencoded POST is bound correctly, but the JSON POST is not. [FONT=Verdana] still having a hard time with this… The SitePoint Forums – 27 May 14 Java: get array sent from ajax/jQuery [FONT=Verdana]I need to get an array of srings with Java that I send. Therefore, we need to double the backslash character when using it to precede any character (including the. idl Generates a JSON schema from an Avro IDL file induce Induce schema/protocol from Java class/interface via reflection. Skip Structure. The quickest method of converting between JSON text and a. A string is very much like a C or Java string. A JSON object begins and ends with braces, and contains an unordered collection of name/value pairs. 0 with many revamped features and apps like MultiView, BackSlash Linux Kristoff is surely a killer with new elegant looks, with a totally redesigned theme, icon and emoticons. is a data interchange format that has vastly improved server-to-browser communications—especially when it comes to AJAX. json file by running a CLI questionnaire or creating a default package. Convert JSON to YAML online YAML vs JSON. Backspace is replaced with \b, Newline is replaced with \n, Tab is replaced with \t, Carriage return is replaced with \r, Form feed is replaced with \f, Double quote is replaced with \", Backslash is replaced with \\,. 2 in favor of APPLICATION_PROBLEM_JSON since major browsers like Chrome now comply with the specification and interpret correctly UTF-8 special characters without requiring a charset=UTF-8 parameter. Solve common issues with JSON in SQL Server. • Edit, add, move, remove, and duplicate fields and values. Now we know which player is active we can query the current item with. Note that while the JSON Java API provides some helper classes ( JSONWriter and JSONStringer) that allow you to use a JSON-like syntax flow in Java, the following example uses JSONOjbect and JSONArray directly, which are simple and effective APIs. Note the double backslashes. Hi Mr Anonymous, The NullPointerExcpetion comes because you might have passed the JSON String as a Set Property to EAI JSON Converter, instead pass as Set Value and then in the. Create a simple Employee pojo. Why JSON isn’t a Good Configuration Language. See the differences between the objects instead of just the new lines and. Retrieving a JSON file using Ajax. We will read JSON string from a file and map it to Employee class. I’ve just started my JSon journey, but this gave me a jump start 🙂 Many of you have problems with the Newtonsoft. Converter also supports more than 90 others vector and rasters GIS/CAD formats and more than 3 000 coordinate reference systems. As you showed using Firebug, the data is being sent as a URL en. JSONiq is a query and processing language specifically designed for the popular JSON data model. Today's web applications heavily rely on json for client server communication. Java Development (3803). Enter the String get sample. 2014-05-06 07:43 robe * doc/installation. Learn more about them, how they work, when and why you should use JWTs. Applying a Namespace During JAXB Unmarshal For some an XML schema is a strict set of rules for how the XML document must be structured. Java tried to escape your string as " " is part of your string not actual quotes which are used in start and end. Serializing JSON. JSON (JavaScript Object Notation), specified by RFC 7159 (which obsoletes RFC 4627) and by ECMA-404, is a lightweight data interchange format inspired by JavaScript object literal syntax (although it is not a strict subset of JavaScript ). • A JSON decoder must accept all well-formed JSON text. Encoding Strings. The answer is simple: there is no backslash in the string! What you're seeing is the Visual Studio debugger's representation of the string. An object is an unordered collection of zero or more name/value pairs. NET Documentation. On the command line, navigate to the root directory of your package. Especially in the web development world, you'll likely encounter JSON through one of the many REST APIs, application configuration, or even simple data storage. Encodings other than UTF-8 are very unlikely to be valid when decoded as UTF-8 so the chance of accidentally misinterpreting characters in JSON Lines files is low. In addition, we will learn how to format multi-line text so that it is more readable. getJSON() and \$. It has a JSON binding API, which means that it can automatically translate JSON from and to Java objects (Java beans), but it also has an API to work with JSON when you don't know the exact content, and you don't have Java beans to map the JSON from or to. The "Text Component" is Minecraft's text handling system, in which the text to parse is stored as JSON. The Internet Media type for JSON is. You should, by the way, pay attention to the structure of the JSON. One that's popular and that I like is Jackson. We will read JSON string from a file and map it to Employee class. These characters are : ‘ single quote ” quote \ backslash; all control characters like \t; Lotus Notes Domino solution. It is easy for humans to read and write. json from login. The json1 extension is a loadable extension that implements fifteen application-defined SQL functions and two table-valued functions that are useful for managing JSON content stored in an SQLite database. • A JSON encoder must only produce well-formed JSON text. To do that I have a text field on the object I create which holds the JSON string. These JSON structures are represented as object models using the Java types JsonObject and JsonArray. This is where I am having the Problem. They do not throw any exception. Let's have a quick look at the basic syntax of JSON. 592684","severity":"normal","status":"UNCONFIRMED","summary":"dev-haskell\/cabal-1. JSON Web Encryption is vulnerable to a classic Invalid Curve Attack. parse cannot parse some special characters that are , \t, \r and \f. The JsonSerializer converts. But it seems that there is a problem using backslashes in the ENTRYPOINT with braces. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. In this tutorial we discuss how you can automatically consume and produce JSON using Jersey2 Rest web services. What's different about Flexjson is it's control over what gets serialized allowing both deep and shallow copies of objects. For example, if you'd like to find out all the last successful build of a given view, you'd realize that the invocation to the remote API of the view won't give you this, and you'd have to recursively call the remote API of each project to find this out. I don't think this is a bug, as the JSON spec explicitly allows escaping the forward slash. Json SerializeObject and DeserializeObject are not working and returning null (variables json and items in code below). It’s a language that’s similar to XML, syntactically identical to JavaScript code, and the fastest data-interchange format to be used with AJAX (Asynchronous JavaScript. I seem to be missing that one, too. h: forgotten function declaration 2014. stringfy(json); the detail here is that I’m using blade inside laravel to build a three view form, so I can go back and forward, I have in between every back and forward button validations and when I go back in the form without reloading the page my json get filled by backslashes. One of the cool things about the JavaScriptSerializer class, is that when we deserialize a JSON string we specify the type of object we want to get back from the Deserialize function. Load from JSON Data Using the 'auto' Option To load from JSON data using the 'auto' argument, the JSON data must consist of a set of objects. T his article describes how to get a JSON response from the RESTful web services using jersey implementation. Join over 5 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. I have a strange problem. Welcome to the power of the escape character. Despite its name, it is separate to JavaScript and many languages have parsers suitable for working with it. Online JSON Formatter and Online JSON Validator also provides tools to convert JSON to XML, JSON to CSV, JSON Editor, JSONLint and JSON Checker. In this case the JWE Protected Header lists as well the used elliptic curve used for the key agreement: Once the shared secret is calculated the key agreement result can be. Net and must be properly escaped to be used within strings: Backspace is replaced with \b; Newline is replaced with \n; Tab is replaced with \t. 2 we allow the creation of JSON data using 4 new SQL operators JSON_OBJECT, JSON_OBJECTAGG, JSON_ARRAY, JSON_ARRAYAGG (which are all part of the new SQL 2016 standard). JSON objects become Maps which can store name-value pairs; it is important that the JSON not have repeating name entries in the same object as Maps can only store unique key values. One of these is DatatypeConverter. Despite its name, it is separate to JavaScript and many languages have parsers suitable for working with it. As described in the "Modularity" section of the The Newspeak Programming Platform paper, top-level classes (in this case JSONParser) doesn't have access to its surrounding scope, it only has access to its own or inherited definitions. All of these libraries are popularly used for JSON processing in a Java environment, and were chosen according to their popularity in Github projec. The Commons Proper is a place for collaboration and sharing, where developers from throughout the Apache community can work together on projects to be shared by the Apache projects and Apache users. The quickest method of converting between JSON text and a. Punctuators and whitespace can't be used in an unquoted key or as the first character of a quoteless string. Escapes any values it finds into their Json String form. { "java": { "lzma": { "sha1": "fa896bd4c79d4e9f0d18df43151b549f865a3db6", "url": "http://launcher. Net string removing traces of offending characters that could prevent compiling. You need to escape your backslash by preceding it with, yes, another backslash: print "\\" The \ character is called an escape character, which interprets the character following it differently. To counter this your server can prefix all JSON requests with following string ")]}', ". Notes - You must know proper JSON syntax to understand the code. Decades of Lessons Learnt. To deserialize a JSON string, use the Deserialize or DeserializeObject methods. You can create a package. Parse(UserID)); return new JavaScrip. Deserialize backslash and double-quote fixing hi, still working in serach inside grids. * (bug 20239) MediaWiki:Imagemaxsize does not contain anymore a. Create a simple Employee pojo. The Newtonsoft. How to use HttpClient to post Json data to WebService in Windows Store apps The sample shows how to use HttpClient post Json data in windows 8 metro application. If you are still willing to set up your environment for Java programming language, then this section guides you on how to download and set up Java on your machine. Play supports this via its JSON library. For example, from a PHP array, it can create a JSON representation of that array. To compile a Java source code file Foo. JavaScript Object Notation (aka JSON) is a very popular alternative to XML for transmitting data to the web browser. Curly braces hold objects and each name is followed by ':'(colon), the name/value pairs are separated by , (comma). Java String replace(), replaceFirst() and replaceAll() examples: All of these methods are mainly used for replacing a part of String with another string. Remove escape characters from JSON (unescape) to get back the original string.