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Java 11 hashmap deadlock [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 1 year ago. Improve this question Here are a few lines of code which I wrote to test hashmap’s performance in a multi-threading environment. I know that hashmap may cause deadlock

Java problem, run time error, maybe problem occurs on numbers activity.xml file, tried to configure problem but still app is not working [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 MainActivity.java activity_main.xml numberActivity.java activity_numbers.xml Debugging error (in Logcat)= numbersactivity.java file numbersactivity.xml file mainactivity.java

MongoDB 4.4, Java driver 4.2.3 – InsertManyResult.getInsertedIds() not returning IDs for all inserted documents

I am trying to retrieve values of _id for inserted documents after successful InsertMany operation. To achieve this I am using InsertManyResult.getInsertedIds(). While this approach works most of the time there are cases where not all _id values are retrieved. I am not sure if I am doing something wrong but I would assume that InsertManyResult.getInsertedIds() returns _id for all

How to use environment variables in CMD using Java?

I am new to using the ProcessBuilder object to run commands inside of Java. My issue is that when I put my environment variables into the builder.command(…) method, it doesn’t work. However, when I hardcode the strings of the environment variables, it works perfectly. Here is my code below along with an explanation to help make clear on what I

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