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How to access JSON field that doesn’t have identifier

How could I access the #19 that is at the end of this JSON? Im using java 11 with GSON library but any library is okay or explanation. Some context: usually I reference the field like .get(“id”) but that 19 is kind of the first time I see that and I know it is because of the circular reference that

A method that has a class return type

I don’t quite understand how am I going to implement and solve this problem: Consider an array data of n numerical values in sorted order and a list of numerical target values (target values are not necessarily sorted). Your goal is to compute the smallest range of array indices that contains all of the target values. If a target value

Are booleans implicitly true?

I’m a bit confused on this bit of code. My professor explained that the output will always be true but I’m confused on why. I changed the boolean to both true and false but the output is always true and I’m having a hard time explaining the logic behind it. I assumed that since a false && true will always

Why is my trapezoid rule implementation not producing expected results?

I have implemented a function to find the trapezoid rule of a given function, the function produces poor results for . When I try to calculate the trapezoid rule with n < 8 it produces a value much larger than the actual area, which is unexpected, I have graphed f(x) and drawn how I believe the first few numbers of

fold not working as expected using akka streams

Below is code I’ve written to try an output the sum of each akka message received which has been edited from this guide : https://doc.akka.io/docs/akka/current/stream/stream-flows-and-basics.html The fold operation seems to cause nothing to outputted on the console. However if I use instead of Then the following is outputted : I’m attempting to group a list and perform a fold operation

local variable initialization were wrong java [closed]

Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 months ago. Improve this question I am new to java, why a, b,c initialization are wrong in the following code. Answer Java works differently compared to JavaScript. Every {} block

i want to find the span of a array. Span is defined as difference of maximum value and minimum value [closed]

Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 1 year ago. Improve this question I tried by creating two functions for greatest and smallest values and then

Count how many pairs of a number appear in an array

Lets say with the array: I want the output to be: For that I created a Hash table. The code : Not sure what to do next to print out the desired output. Been stuck in this simple part for a long time. Answer The calculation of frequencies seems to be fine, only printing part needs to be addressed. To

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