The query SELECT * FROM books WHERE (isbn || ‘ ‘ || author || ‘ ‘ || name) ILIKE ‘%el%’ returns from the full db when executed in pgAdmin (PostgreSQL tool) But the same query doesn’t seem to work when I try to run it in Spring Boot, it returns an empty list. I do not …
Tag: java
Webclient sending request body with get request
I have a spring-boot project called carrental-crud with an h2 memory database, and I want to access one of the endpoints from another project called carrental-api. I use webClientBuilder for this on my other endpoints, but it is throwing status 500 with bad request when I try using it in postman. I use JPArep…
How to get a generic type which is defined on method in Java?
Question 1: Suggest I have a example like this: then can I get type String in methodA without actually passing String to it? Question 2: If the previous example is transformed to this: I mean what was passed into methodA is no more a simple object but a lambda expression, also, can I get type String in method…
Is there an form of Java interop that is standardized in COBOL?
A quick glance suggests IBM’s, Microfocus’s and GNU COBOL’s offerings for Java and COBOL interop are all different APIs. However, on Wikipedia there is currently the quote that the 2002 spec “Improved interoperability with other programming languages and framework environments such as …
Why am I getting “Error processing transaction request: intrinsic gas too low” error when trying to add tUSDT to a particular account?
I am trying to send test USDT to a particular account in Java using the following code: The last statement results in the following exception: TestGasProvider is defined as: usdtContract was deployed using this script, which calls deploy.js: This contract is running on a local testnet set up as described here…
Using one Google Maps Activity, call a method using three different buttons
I have an android application in which I have 3 buttons and by pressing them I want to call three different Google maps markers, by using the same google maps activity. CLASS WITH 3 DIFFERENT BUTTONS and then my GOOGLE MAPS ACTIVITY CODE This is what I’ve done so far, but I can’t find a way to use…
How to Sort List based on Inner Object’s property in java 8
I have classes structure similar to: I have two different tables Source and Target, and after joining them I am getting four columns in the query output. I am constructing Response object using values of these four columns. I have data in Response object with these 4 properties sourceId, sourceName, targetId,…
Send cross AWS account message from Lambda to SQS
I want to send a message to SQS queue on another account (Ohio) from lambda in North Virginia account. How can I achieve this? Things I tried so far: Created a queue in Ohio and gave lambda role arn to the queue. Sent message from the lambda in North Virigina , got following error: “errorMessage”:…
where to store data read from file [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 1 year ago. Improve this question I am making a semester project for my University OOP course. I am maki…
Java method should cache the results
I’m learning programming in the language java. I need to write an application that takes a string and returns the number of unique characters in the string. It is expected that a string with the same character sequence may be passed several times to the method. Since the counting operation can be time-c…