Tag: java

Find closest factor to a number, of a number

I am trying to automate the finding of the closest factor of a number to another number; Example: Closest factor of 700 to 30 is 28 (30 does not go into 700, but 28 does). An obvious solution is just to get all the factors of 700 and do a simple distance calculation to find the nearest factor to 30,

JNA calling CoInitialize when loading a dll

I’ve got a dll written in Pascal. I’ve determined that I need to run CoInitialize in the Java code, but I just can’t figure out how. I found another Stack Overflow thread which should have helped …

How to construct a custom JSON error response using the Struts 2 framework

I am working on creating a web application using Struts 2. I want to send out JSON error response like the below when the request URL is not well formed: { “status”: 409, “code”: 40924 …

Eclipse Java debug mode: how to get actual type of value?

The variable view of Eclipse Java Debug mode allows to inspect the values of variables. If the type of a variable has several sub-types, how to find out the actual type of the value? Eclipse …

Cannot start this animator on a detached view! reveal effect

I’m trying to create the reveal effect in my application but without success. What i want is reveal a cardview when i open a fragment. What i tried so far is: and in the onCreateView i started the method: this is the cardview: and the logcat: Checking, seems that getWidth() and getHeight() returns 0. But i don’t know if it’s

Lazy way to convert log4j.xml to log4j2.xml [closed]

Is there a easy/lazy way (e.g a shell script etc) to convert a big log4j.xml file to log4j2.xml equivalent? Or does everyone do this manually ?

Returning ResultSet without close?

I would like to have a database connection managing class which I can use for simple SQL commands like SELECT, INSERT etc. by simple calling something like this (class below): This is class I’ve found on web: Is this way of returning ResultSet without closing it (and closing the statement) right? How can I return the ResultSet from the method?