Tutorial by Examples: ee

ORMLite is an Object Relational Mapping package that provides simple and lightweight functionality for persisting Java objects to SQL databases while avoiding the complexity and overhead of more standard ORM packages. Speaking for Android, OrmLite is implemented over the out-of-the-box supported da...

WRITE record-buff WRITE indexed-record WITH LOCK ON INVALID KEY DISPLAY "Key exists, REWRITING..." END-DISPLAY PERFORM rewrite-key END-WRITE IF indexed-file-status NOT EQUAL ZERO THEN DISPLAY "Write problem: " indexed-file-status UPON SYSERR ...

The file editor that ships with WordPress is a security risk. If an attacker gains admin access to your WordPress website they will be easily able to insert malicious code into theme and plugin files. It is also a risk with clients who don't know what they're doing. Once misplaced colon in the file ...

[![Sample equation][1]][1] sympy provides its solution as a Python set of expressions in terms of parametric variables, as shown here in the final line. >>> from sympy.solvers.diophantine import diophantine >>> from sympy import var >>> x,y,z=var('x y z') >>>...

Of course, just like most things in browser JavaScript, you just can't count on the fact that everything will be the same everywhere. In this case, requestAnimationFrame might have a prefix on some platforms and are named differently, such as webkitRequestAnimationFrame. Fortunately, there's a reall...

1)Took backup of Machine.config from locations C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config and C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config 2)Copy them to different location and edit them as a)locate and add under <system.data> <DbProviderFactories> ...

Lets first understand the problem, consider this figure- We want to calculate ϴ, where we know A, B & O. Now, if we want to get ϴ, we need to find out α and β first. For any straight line, we know- y = m * x + c Let- A = (ax, ay), B = (bx, by), and O = (ox, oy). So for the line OA- oy =...

Reading a text file line-by-line A proper way to read a text file line-by-line till the end is usually not clear from ifstream documentation. Let's consider some common mistakes done by beginner C++ programmers, and a proper way to read the file. Lines without whitespace characters For the sake o...

Since ls() finds objects by names, it's a handy way to find out if an object is present in the scene. ls() with a list of objects will only return the ones which are in the scene. available_characters = cmds.ls('fred', 'barney', 'wilma', 'dino') # available_characters will contain only the named...

Some functions in R produce a side effect (i.e. saving, printing, plotting, etc) and do not always return a meaningful or desired value. %T>% (tee operator) allows you to forward a value into a side-effect-producing function while keeping the original lhs value intact. In other words: the tee op...

Though it is an obsoleted part of the XSI standard, many implementations still support multiple expressions with Boolean operators and parenthesis. The (obsolete) operators are listed below with decreasing precedence. ( expression ) expression -a expression expression -o expression Using thes...

Player playerToCheck; Player playerSeeing; boolean isVisible = playerSeeing.canSee(playerToCheck); //isVisible returns true if playerSeeing can see playerToCheck and false otherwhise

Sometimes you want to keep the switched-out components in memory, to make that happen, you should use <keep-alive> element: Javascript: new Vue({ el: '#app', data: { currentPage: 'home', }, methods: { switchTo: function(page) { this.currentPage = page; ...

When viewing an execution plan, you may see that SQL Server decided to do a Seek or a Scan. A Seek occurs when SQL Server knows where it needs to go and only grab specific items. This typically occurs when good filters on put in a query, such as where name = 'Foo'. A Scan is when SQL Server doesn...

Many, pure python, packages are not yet available on the Python Package Index as wheels but still install fine. However, some packages on Windows give the dreaded vcvarsall.bat not found error. The problem is that the package that you are trying to install contains a C or C++ extension and is not c...

A generic Car class has some car property and a description method class Car{ name:string; engineCapacity:string; constructor(name:string,engineCapacity:string){ this.name = name; this.engineCapacity = engineCapacity; } describeCar(){ console....

here countInstance is a static class variable class StaticTest{ static countInstance : number= 0; constructor(){ StaticTest.countInstance++; } } new StaticTest(); new StaticTest(); console.log(StaticTest.countInstance);

You can request free Oracle Application Express workspace on official site: apex.oracle.com.

WPF does not support displaying anything other than an image as a splash screen out-of-the-box, so we'll need to create a Window which will serve as a splash screen. We're assuming that we've already created a project containing MainWindow class, which is to be the application main window. First of...

WPF does not support displaying anything other than an image as a splash screen out-of-the-box, so we'll need to create a Window which will serve as a splash screen. We're assuming that we've already created a project containing MainWindow class, which is to be the application main window. First of...