I'm coming from Java where the builder pattern is used heavily, e.g. Foo foo = new FooBuilder() .setBar(43) .setBaz("hello, world!") .enableCache(tr
I'm planning to convert the following without a for loop and using functional programming: int count = 0; for (int i = 0; i < 5; i++) { //Feedback: avoid for
In Java: If I print "123\u202e987\u202c456abc" then the result is 123987456abc If I print "123\u202e987\u202cxyzabc" then the result is 123
I have an exception when I try to run install.bat -r b2c_acc_plus , can you help me to resolve it ? java.lang.NoClassDefFoundError: Could not initialize class o
i'm using rabbitmq stream and i need to add a delay between messages because the stream handles messages very fast. how can I do that?
I have a JPA entity with the following fields: @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "modified_by_user_id") private User modifiedByUser; @Conve
I want to log into two different files, historic.log and applicative.log, from the same package that is com.authenticationservice.user.UserRequest. In the histo
I am using NetBeans IDE 8.0.2 to create my project application. I have created my application's signup page using multiple panels in CardLayout. For users to up
In the application I would like to create a request-scoped bean (annotated with @RequestScope) that would represent a user of the application (for authenticatio
I have a class to generate an Arraylist it all seems to work but in main it produces a compilation problem which I guess does not recognize my variable name as
I'm not able to send message to sqs-queue from my java application. I am running roribio16/alpine-sqs docker image for SQS in my local and I've created a standa
Small RSA decryption question with Java please. I want to meet in a secret location with a friend of mine. As we do not want anyone to eavesdrop on the secret l
In my last project, there was a requirement for throwing exceptions when the request body contains extra parameters. If the request will be like { "test":"bo
I am working on spring-boot project Code is working fine until I add javascript , bootstrap and CSS path in list-todos.jsp but after I add them and hit URL "htt
public class ArrayPQK<P extends Comparable<P>, T> implements PQK<P, T> { int maxsize; int size; int head,tail; Pair<P, T>[] nodes; publi
I've been using the == operator in my program to compare all my strings so far. However, I ran into a bug, changed one of them into .equals()
I'm using android studio to connect to a Microsoft SQL Server and I can't use the JDBC for JDK 17. It just appears with the following error message: 'com.androi
The default algo for RandomGenerator ie. L32X64MixRandom as of JDK 18 (available since 17), generates the same number each time on individual invocations. jshel
I have this error "Unable to get connection, DataSource invalid: "java.sql.SQLException: No suitable driver found for /Users/testdb.db" when trying to select q
Say we have a select query like select a.col1,a.col2,a.col3,b.col1,b,col2,c.col1 from a, b, c where a.col1(+)=b.col2 and b.col3(+)=c.col2 In mybatis xml we hav