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JSON in Java [package org.json] =============================== [](https://mvnrepository.com/artifact/org.json/json) JSON is a light-weight, language independent, data interchange format. See http://www.JSON.org/ The files in this package implement JSON encoders/decoders in Java. It also includes the capability to convert between JSON and XML, HTTP headers, Cookies, and CDL. This is a reference implementation. There is a large number of JSON packages in Java. Perhaps someday the Java community will standardize on one. Until then, choose carefully. The license includes this restriction: "The software shall be used for good, not evil." If your conscience cannot live with that, then choose a different package. The package compiles on Java 1.6-1.8. **JSONObject.java**: The `JSONObject` can parse text from a `String` or a `JSONTokener` to produce a map-like object. The object provides methods for manipulating its contents, and for producing a JSON compliant object serialization. **JSONArray.java**: The `JSONArray` can parse text from a String or a `JSONTokener` to produce a vector-like object. The object provides methods for manipulating its contents, and for producing a JSON compliant array serialization. **JSONTokener.java**: The `JSONTokener` breaks a text into a sequence of individual tokens. It can be constructed from a `String`, `Reader`, or `InputStream`. **JSONException.java**: The `JSONException` is the standard exception type thrown by this package. **JSONPointer.java**: Implementation of [JSON Pointer (RFC 6901)](https://tools.ietf.org/html/rfc6901). Supports JSON Pointers both in the form of string representation and URI fragment representation. **JSONString.java**: The `JSONString` interface requires a `toJSONString` method, allowing an object to provide its own serialization. **JSONStringer.java**: The `JSONStringer` provides a convenient facility for building JSON strings. **JSONWriter.java**: The `JSONWriter` provides a convenient facility for building JSON text through a writer. **CDL.java**: `CDL` provides support for converting between JSON and comma delimited lists. **Cookie.java**: `Cookie` provides support for converting between JSON and cookies. **CookieList.java**: `CookieList` provides support for converting between JSON and cookie lists. **HTTP.java**: `HTTP` provides support for converting between JSON and HTTP headers. **HTTPTokener.java**: `HTTPTokener` extends `JSONTokener` for parsing HTTP headers. **XML.java**: `XML` provides support for converting between JSON and XML. **JSONML.java**: `JSONML` provides support for converting between JSONML and XML. **XMLTokener.java**: `XMLTokener` extends `JSONTokener` for parsing XML text. Unit tests are maintained in a separate project. Contributing developers can test JSON-java pull requests with the code in this project: https://github.com/stleary/JSON-Java-unit-test Numeric types in this package comply with [ECMA-404: The JSON Data Interchange Format](http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-404.pdf) and [RFC 7159: The JavaScript Object Notation (JSON) Data Interchange Format](https://tools.ietf.org/html/rfc7159#section-6). This package fully supports `Integer`, `Long`, and `Double` Java types. Partial support for `BigInteger` and `BigDecimal` values in `JSONObject` and `JSONArray` objects is provided in the form of `get()`, `opt()`, and `put()` API methods. Although 1.6 compatibility is currently supported, it is not a project goal and may be removed in some future release. In compliance with RFC7159 page 10 section 9, the parser is more lax with what is valid JSON than the Generator. For Example, the tab character (U+0009) is allowed when reading JSON Text strings, but when output by the Generator, tab is properly converted to \t in the string. Other instances may occur where reading invalid JSON text does not cause an error to be generated. Malformed JSON Texts such as missing end " (quote) on strings or invalid number formats (1.2e6.3) will cause errors as such documents can not be read reliably. Release history: ~~~ 20180130 Recent commits 20171018 Checkpoint for recent commits. 20170516 Roll up recent commits. 20160810 Revert code that was breaking opt*() methods. 20160807 This release contains a bug in the JSONObject.opt*() and JSONArray.opt*() methods, it is not recommended for use. Java 1.6 compatability fixed, JSONArray.toList() and JSONObject.toMap(), RFC4180 compatibility, JSONPointer, some exception fixes, optional XML type conversion. Contains the latest code as of 7 Aug, 2016 20160212 Java 1.6 compatibility, OSGi bundle. Contains the latest code as of 12 Feb, 2016. 20151123 JSONObject and JSONArray initialization with generics. Contains the latest code as of 23 Nov, 2015. 20150729 Checkpoint for Maven central repository release. Contains the latest code as of 29 July, 2015. ~~~ JSON-java releases can be found by searching the Maven repository for groupId "org.json" and artifactId "json". For example: https://search.maven.org/#search%7Cgav%7C1%7Cg%3A%22org.json%22%20AND%20a%3A%22json%22