Skip to content

Tag: java

Find all numbers in the String [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, …

Wicket dynamically add components to form

I’m having trouble adding components to a form dynamically. What I’m trying to do is: Give the user a drop-down list with items they can choose like name, age, … When a user presses add: there comes a (label + inputbox) in 1 component which allows them to put in the value. You might think I …

Reflection generic get field value

I am trying to obtain a field’s value via reflection. The problem is I don’t know the field’s type and have to decide it while getting the value. This code results with this exception: Can not set java.lang.String field com….fieldName to java.lang.String I tried to cast, but I get comp…

Java TCP Client/Server

I have a problem which I do not know how to proceed further in Java TCP socket issue. So far as what we can get from the Internet, it’s not hard to get quite a number of working solution for TCP server & client communication in Java. However, most of the example will have their server listen to a po…

How to remove certain items from a Stack [closed]

It’s difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 9 years ago. I have a homework pr…

JPA could not locate named parameter

I keep getting the following error: “could not locate named parameter [articleCommentId]” but it doesn’t make sense to me because to me the named parameter is very much in place. Here is an extract of the stack trace with the relevant error: Answer I bet it is due to the extra ; in your quer…