Not Showing Correct Position While Searching in Listview

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public class MainActivity extends AppCompatActivity { SearchView searchView; ListView listView; ArrayList list; ArrayAdapter adapter; @Override protected void onCreate(…

Create smooth gradient with HSB in java

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I’m trying to create a sorting algorithm visualiser in greenfoot java, with an array shown as a column graph. I want it to be colourful, so I’m using a colour gradient like shown in this video https://…

Java Stream why does reduce requires two parameters of the functional Interface?

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In other words, why does reduce require BinaryOperator, or BiFunction interface? Why doesn’t it use UnaryOperator, or Function interface instead? What is the point of having two parameters as the …

MapReduce filtering to get customers not in order list?

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Currently learning on MapReduce and trying to figure out how to code this into Java. Two input files, called customers.txt and car_orders.txt: customers.txt =================== 12345 Peter 12346 …

Issues with CORS preflight Spring/React, reading from authorized/admin endpoint

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Im new to both Java (spring) and React and the most issues I seem to get is by the annoying CORS. I did have same CORS issues before and by looking online I found serveral solutions, but mainly the …

ISO Message Representation , Wired behavior in the “pack” method in JPOS

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I have 2 web services .. once accepts a payload like this : { “MTI”: “0100”, “2”: “4655206331051889”, “3”: “000000”, “4&…

Tags: java

how can I fix my JList? It’s not appearing

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The list isn’t showing on the panel, however when I replace panel2.add(new JScrollPane(insuranceplan)) with panel2.add(insuranceplan), I can see the list but I can only select 1 item. lab9 is a …

Tags: java sorting

Sorting multiple conditions with null value

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I have this code, which sorts an array list based on 3 variables result.sort(Comparator.comparing(FeConsumptionChannelDTO::getMeterName) .thenComparing(FeConsumptionChannelDTO::…

Combine two lists by ID

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I have two lists of objects with contents that look like this: List A id = 1, name = “alex”, height = null, weight = 60 id = 2, name = “sara”, height = null, weight = 50 List B id …

Sending JSON Data to JPOS Based Project but failed in unpacking field 34

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Request that i send : {“transactionid”:”12″, “ISOMsg”:”010046552063310518890000000000000123001203210541330012003255399022004655206331051889=…