I'm trying to consume a web service, in which we import a certificate to the JDK's cacert file. But I can't understand how to "set" the HttpsURLConnec ...

I'm trying to time time it takes for the CompletableFuture that is being returned by java.net.http.HttpClient#sendAsync // premain public static void ...

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I have JTable that's supposed to show data that's present in a model that's a custom class that extends DefaultTableModel. It is supposed to start as ...

I'm using Primefaces datatable with PF8. Data is coming from ListDatamodel. I want to use Cell editing and implemented it exactly like shown in Prime ...

well this is what I want to do. I have a website that is supposed to show post created from an Admin dashboard in index page using jsp as language, I ...

I have Spring Boot app deployed on free tier with cron jobs blocked (so any workaround is impossible) so it sometimes happens that this app shutdowns ...

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I'm building a compiler and trying to parse a text file in Java. In this text file, I am looking to ignore comments. This is indicated by "(" at the b ...

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I'm a little confused on how lexical analyzers work and how you would implement one along with a top-down parser in Java. The goal is to generate lexe ...

I'm using SimpleDateFormat to parse dates.. And I've detected that some "valid" dates are causing exceptions. Example that works fine: Test with e ...

I'm a student and in one of my virtual classes my teacher give us an example code about WebSockets in Java. The problem is that, no matter what I do, ...

I have a problem with my kafka consumer, when consumer start reading from topic, message deserialization fails and block my consumer. Looks like it ca ...

Like the title says, I have a .txt file with user names (no white spaces but with all sorts of characters). I want to implement it in a stack so users ...

I'm using log4j 2.17.2 and I'm getting NoSuchFieldError and when I bring up the Constants class the EMPTY_BYTE_ARRARY static member is there. I've not ...

I am new to Java, and have only been programming for about a year, and I am having trouble understanding what exactly "repositories" are in Spring, as ...

I'm beginning in java and encountering a few issues. I need to write a program that calculates an average mark in java without using arrays (haven't s ...

I've been trying to get the WebDriver to find the element by xpath and using the href link directly behind the button, however to no avail. Here's my ...

Given the Pseudocode - What should be the Overall Time Complexity of the Code. Is it O(n) or O(n^2) ? Does it take longer time to print a longer s ...