Can I create a new struct on the heap without defining a constructor?

I understand that there are very few differences between structs and classes in c++ (two?). Be that as it may, I've been instructed to use structs to define simple little things like nodes that...

How to determine a long touch on android?

I am looking for a way for when a user long touches a mapview (lets say for 1000ms) that i can some how do a certain action. How would i go about judging how long a user long touches a mapsview(or...

Sticky CSS Footer

Can someone help me make the original code from HTML5 Boilerplate Initializser, have the footer stick to the bottom of the browser, I've tried all manor of codes from web examples but...

Mocked Objects in Context during tests execution

I'm working on an application which has both component and integration tests. The differences between then is: a component test test more than one class (i.e., its inner objects aren't all mocked...

ResolutionFailedException with Unity

I'm using Patterns and Practices' Unity to inject dependencies into my objects and have hit a weird (to me, anyway) issue. Here's my class definitions: public class ImageManager : IImageManager...

SSIS Package calling from Windows service on Windows server R2 : Error -Microsoft.SqlServer.Dts.Runtime.DtsComException:

I am able to execute some SSIS packages from my local computer however when I am trying to execute the same through windows service on Windows server R2 it fails. Windows Service Code: using DTS =...

How to mock a non-static private inner java class with PowerMock and EasyMock?

This StackOverflowAnswer didn't work for me so I recreated the question. How do I resolve this exception (powermock.reflect.exceptions.ConstructorNotFoundException) by only modifying the testClass...

how java inner class objects exists in the memory heap?

class Outer { int o = 10; class Inner { int i = 20; } } public class Demo { public static void main(String args[]) { Outer o = new Outer(); Outer.Inner...

Getting error Could not locate appropriate constructor on class

I am trying to map native SQL result to my POJO. Here is the configuration. I am using spring. <bean id="ls360Emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" > ...

How to create a class that creates onTextChangedListener and allows the programmer to set different behaviors

I'm programming on Android and I want an easy way to do the things below without having to have a bunch of overrides and ugly code: These are all examples: When editText1 is changed I want a...

Limit property to specific values

There are some properties in a class where there are only certain values that are acceptable. The corresponding field in the database, however, is of type string (nvarchar). This means that it's...

How does `this` reference to an outer class escape through publishing inner class instance?

This was asked slightly differently earlier but asking for a yes/no answer but I'm looking for the explanation that's missing from the book (Java Concurrency in Practice), of how this apparent big...

Collapse all #regions only(!) in C# (Visual Studio)

There's a number of keyboard shortcuts and menu commands to automatically expand or collapse all foldables in the current document. Ctrl+M, Ctrl+L toggles all foldables recursively, from the top...

Referencing from an inner class

I have the following code import javax.swing.*; import java.awt.*; import net.miginfocom.swing.MigLayout; import Sorts.*; import javax.swing.event.*; import java.awt.event.*; import...

how to launch an app from another app in android

I am developing an app in which i want to launch any application installed on my device. I have tried the following code. Button bClock = (Button) findViewById(R.id.button1); String...

How to implement Role Permission based system in Spring Boot

I am trying to implement role permissions based system using spring boot and spring security. For this, I have taken an example from...

Sequence contains more than one element?

Using ASP.NET MVC5 I'm getting this error: System.InvalidOperationException: Sequence contains more than one element at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source) ...

Entity Framework Update nested list

I use Entity Framework 6 (Code First). I have a class: public class DialogSession {...} And another class with a list of DialogSession objects: public class DialogUser { public int Id { get;...

Subtypes (inner entities) in Oracle SQL Developer Data Modeler

How to create subtypes in logical model using user interface in Oracle SQL Data Modeler? I have one entity which is "VEHICLE" with atributes such as: date of production etc, and I'd like to add...

Left Join in Spring Data JPA's Specification

Assume I'm having the following class: (simplified to the extreme) @Entity @Table(name = "USER") public class User { @OneToOne(mappedBy = "user", cascade = CascadeType.ALL) private...

Python - reference inner class from other inner class

I am trying to reference an inner class from another inner class. I have tried both : class Foo(object): class A(object): pass class B(object): other = A and class Foo(object): ...

How canvas.drawRect draws a rectangle

I have to create a custom view where I have to draw a rectangle. I'm trying to use the canvas.drawRect method. I wanted to create rectangles somethig like this the gray colored one is my custom...

Strange issue with System.Net.Http 4.2.0.0 not found

I have a strange issue, which drives me crazy… I have a simple Class Library Project (Full .NET Framework, 4.6.1) with a wrapper class for functionality around Cosmos DB. Therefore I have added...

How to extract Markup relation with Teamcenter C++ API?

In Teamcenter I have a dataset that contains two inner datasets: A "Good ds" dataset with an External Proxy relation. A "Bad ds" dataset with Markup(s) relation I'm trying to enumerate server...

bill pugh singleton, why thread safe?

Why is Bill Pugh's Singleton design pattern thread safe? public class Logger { private Logger() { // private constructor } // static inner class - inner classes are not...

What is meant by root element in Material-UI documentation?

I am confused by material ui terminology and will appreciate if someone could explain it to me. Let's take, for example, this description https://material-ui.com/guides/api/ : Spread Undocumented...

Parsing deeply nested JSON properties with Jackson

I am trying to find a clean way of parsing nested properties from a payload from an API. Here is a rough generalisation of the JSON payload: { "root": { "data": { "value": [ { ...

.Net Core 3.1 Razor Pages : autoredirect to culture

I try to accomplish a similar behaviour with MS Docs. For example, if you visit https://docs.microsoft.com/, you will be redirected to your culture, in my case I'm being redirected automatically...

In the byte code level, what is the process to initialize an java inner class?

I wrote a java agent to instrument an open-source benchmark commons-net. But I got the following errors: java.lang.VerifyError: Bad type on operand stack Exception Details: Location: ...

A component required a bean named 'entityManagerFactory' that could not be found

I am doing a project in SpringBoot using Postgres and restful approach. My application is failing to start.I am new to this.Please help me with this problem.Below is my code: *Error* . ____ ...