The first method uses Json-lib.
The second method, using JACKSON.
The first two methods are easier for relatively simple pojo objects. But as opposed to nesting multiple layers of data, complexity goes directly up.
The third method, using Google's Gson to solve the problem. As the android knows, it's Google, and the best thing about it is that it doesn't depend on other packages. The use of natural is very cool, the value of the way is very flexible.
In daily use, we usually encounter map to JSON, if the traversal will waste a lot of time, in fact, we have such a jar package
Copy Code code as follows:
The method * * * is undefined which package is missing for the type jsonobject------
Json-lib.jar
It's still not going to work. Need a depen
Due to project requirements, it is necessary to convert the code developed by a Java project to the code of C # recently. It is time-consuming to convert the code of a file to a file. You can use the tool to add your own experienc
The json string to the json object universal converter (implemented in java) is one hundred lines of code, which is very lightweight and compact. For general application scenarios, resource consumption is very low and the speed is fast enough, especially for Android application development.
CommonJSONParser can be used
How to convert code from Java to Kotlin: Now you can use Kotlin (KAD 29) and kotlinkad
By Antonio Leiva
Time: Jul, 4, 2017
Link: https://antonioleiva.com/kotlin-from-java/
One of the most amazing features of Kotlin is its ability to fully integrate with Java. This means t
Java uses openoffice to convert doc and docx into pdf instance code, openofficedocx
This article focuses on Java programming using openoffice to convert doc and docx into pdf implementation code, as detailed below.1. Required Soft
This article reproduces the address:http://blog.csdn.net/sunkun2013/article/details/13167099
1. Background:When you learn Java, there is only one section in the textbook about title, and you have to write your own cumbersome configuration file, and the end result can only be converted to a jar file. It's really a bad heart. This blog teaches you how to quickly and easily package Java
teach you how to pack Java code into a jar file and convert it into an EXE executable file
1. Background:
Learning Java, the textbook on the issue of the title, only a section, but also to write their own troublesome configuration file, the end result can only be converted to a jar file. It's really a heart of a bad m
Reprint: http://www.jb51.net/article/56096.htm
This article mainly introduces the Java string string and Unicode character conversion code, the need for friends can refer to the following
After the Java environment is installed, the JDK's Bin directory has a native2ascii.exe that can achieve similar functions, but it can also achieve the same functionality throu
After the Java environment is installed, the JDK's Bin directory has a native2ascii.exe that can achieve similar functions, but it can also achieve the same functionality through Java code.
String Conversion Unicode Java method code fragment:
Copy
, converted into Chinese AH ~ ~ ~String a= "Start redeeming";System.out.println (A.codepointat (0));This printed out is the "open" character of the #24320; Unicode number part 24320System.out.println ((char) 24320);This printout is to convert a number to a char type, which is a Chinese character representing the Unicode code.Print out the result: openWith this, you can convert Unicode into Chinese.There is
This article records some code examples that use the annotations feature of the XStream API to convert Java objects to and from XML strings.Many of us have worked with XML files, and there are many very mature third-party open source software. such as:Jdom,dom4j and so on. Although they are very powerful, they are still a bit less accustomed to use. For a fixed-
Could you tell me how to convert the java code of crc16 to the php Post? Finally, the Post is edited by oelenson from 2014-06-211:49:27? this nbsp; crc nbsp; 16 nbsp; how to convert the java code of to php, and use php nbsp; t
Original: Share very useful Java program (key Code) (V)---convert Array to MapImport Java.util.Map; Import Org.apache.commons.lang.ArrayUtils; public class Main {public static void Main (string[] args) { string[][] countries = {"states", "New York "}, {" Kingdom "," London "}, {" Netherland "," Amsterdam "}, {" Japan "," Tokyo "}, {"
1. Background:When you learn Java, there is only one section in the textbook about title, and you have to write your own cumbersome configuration file, and the end result can only be converted to a jar file. It's really a bad heart. This blog teaches you how to quickly and easily package Java code into jar files and convert
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