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Tag: java

JSON object from java ObjectName.toString

I have a java object witch generates this output when i type objectName.toString() : Is there a JSON parser that lets me make a JSON from the string that my object generates? something like: JsonObject x = new JsonObject(busObject.toString()) It is important for me to generate it from the string that i get when calling the .toString method. Any help

Efficient solution to codingBat riddle starOut in Java

The problem I am talking about is this Problem statment: Return a version of the given string, where for every star () in the string the star and the chars immediately to its left and right are gone. So “abcd” yields “ad” and “ab**cd” also yields “ad”. starOut(“ab*cd”) → “ad” starOut(“ab**cd”) → “ad” starOut(“sm*eilly”) → “silly” The solution I got

Accumulator Generator test – Java 8

Paul Graham, in his great article Revenge of the Nerds, claimed that languages vary in power. He mentioned a nice exercise – writing an accumulator generator: We want to write a function that generates accumulators– a function that takes a number n, and returns a function that takes another number i and returns n incremented by i. Solution in Java

Declaring a retrofit REST endpoint with constant query value

So I want to get the metadata of a youtube video (say this one: https://www.youtube.com/watch?v=qlTA3rnpgzU). I’m going to encode it and wrap it in another url like so: http://www.youtube.com/oembed?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DqlTA3rnpgzU&format=json My interface definition will look like this: That’s all fine and dandy, but I don’t ever want to specify any format other than JSON here (format=json is a fixed part of

Get Jackson XMLMapper to set root element name in code

How do I get Jackson’s XMLMapper to set the name of the root xml element when serializing? There’s an annotation to do it, if you’re serializing a pojo: @XmlRootElement(name=”blah”). But I’m serializing a generic Java class, LinkedHashMap, so I can’t use an annotation. There’s probably some switch somewhere to set it. Poking around in Jackson code, I see a class

Using Maven Exec Plugin inside Bash

I’m writing a bash script which will execute some part of a maven project. The script looks like this: But this fails every time with the following error: If I skip the CMD=… assignment, and just run the mvn part directly, like this… …it works just fine. How can I get maven and the exec plugin to understand that I

How to set classpath in ant correctly?

I have my single dependency on path projectRoot/lib/jsoup.jar. My build.xml is simple: This doesn’t work, because jsoup.jar is not included in final AntDemo.jar. EDIT When compile target is running the output has warning: What does this warning mean? Thank you! Answer When you compile classes and specify a classpath, the classes and other resources in that javac classpath don’t get

Simple json to xml conversion

can anyone share code to convert json to xml this is the json that comes through the request I need json to xml as well as vice- versa .Can any one help me out, I’d prefer code with no jar imports required. Thanks in advance Answer If you are using Java SE and can’t use foreign JARs, and your JSON

Solving codingBat ‘evenOdd’ with one loop in Java

The question is about Solving this problem from codingBat in Java. Problem Statement: Return an array that contains the exact same numbers as the given array, but rearranged so that all the even numbers come before all the odd numbers. Other than that, the numbers can be in any order. You may modify and return the given array, or make

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