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Date object = new Date(); Date object = new Date(long date); ParameterExplanationNo parameterCreates a new Date object using the allocation time (to the nearest millisecond)long dateCreates a new Date object with the time set to the number of milliseconds since "the epoch" (Januar...

As of Java 8, Calendar and its subclasses have been superseded by the java.time package and its subpackages. They should be preferred, unless a legacy API requires Calendar.

Nashorn is a JavaScript engine developed in Java by Oracle, and has been released with Java 8. Nashorn allows embedding Javascript in Java applications via JSR-223 and allows to develop standalone Javascript applications, and it provides better runtime performance and better compliance with the ECMA...

ParameterDetailsJNIEnvPointer to the JNI environmentjobjectThe object which invoked the non-static native methodjclassThe class which invoked the static native method Setting up JNI requires both a Java and a native compiler. Depending on the IDE and OS, there is some setting up required. A guide...

RecyclerView is a more advanced version of List View with improved performance and additional features. ParameterDetailAdapterA subclass of RecyclerView.Adapter responsible for providing views that represent items in a data setPositionThe position of a data item within an AdapterIndexThe index ...

ParameterDetailsGoogleMapthe GoogleMap is an object that is received on a onMapReady() eventMarkerOptionsMarkerOptions is the builder class of a Marker, and is used to add one marker to a map. Requirements Google Play Services SDK installed. A Google Console Account. A Google Maps API Key o...

RMI requires 3 components: client, server and a shared remote interface. The shared remote interface defines the client-server contract by specifying the methods a server must implement. The interface must be visible to the server so that it can implement the methods; the interface must be visible...

The java.util.Iterator is the standard Java SE interface for object that implement the Iterator design pattern. The java.lang.Iterable interface is for objects that can provide an iterator. It is possible to iterate over an array using the for-each loop, though java arrays do not implement Iterab...

Operators in Java programming language are special symbols that perform specific operations on one, two, or three operands, and then return a result. An operator is a symbol (or symbols) that tells a Java program to perform an operation on one, two or three operands. An operator and its opera...

JavaScriptSerializer vs Json.NET The JavaScriptSerializer class was introducted in .NET 3.5 and is used internally by .NET's asynchronous communication layer for AJAX-enabled applications. It can be used to work with JSON in managed code. Despite the existence of the JavaScriptSerializer class,...

SQL is Structured Query Language used to manage data in a relational database system. Different vendors have improved upon the language and have variety of flavors for the language. NB: This tag refers explicitly to the ISO/ANSI SQL standard; not to any specific implementation of that standard. ...

JavaScript (not to be confused with Java) is a dynamic, weakly-typed language used for client-side as well as server-side scripting. JavaScript is a case-sensitive language. This means the language considers capital letters to be different from their lowercase counterparts. Keywords in JavaScri...

Functions in JavaScript provide organized, reusable code to perform a set of actions. Functions simplify the coding process, prevent redundant logic, and make code easier to follow. This topic describes the declaration and utilization of functions, arguments, parameters, return statements and scope ...

array = [value, value, ...] array = new Array(value, value, ...) array = Array.of(value, value, ...) array = Array.from(arrayLike) Summary: Arrays in JavaScript are, quite simply, modified Object instances with an advanced prototype, capable of performing a variety of list-related tasks...

object = { } object = new Object() object = Object.create(prototype[, propertiesObject]) object.key = value object["key"] = value object[Symbol()] = value object = { key1: value1, "key2": value2, 'key3': value3 } object = { conciseMethod() { … } } object = { [computed(...

PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source programming language. It is especially suited for web development. The unique thing about PHP is that it serves both beginners as well as experienced developers. It has a low barrier to entry so it is easy to ge...

Notes 1- You do not need an Apple Developer Account to start developing iOS Apps. The documentation and tools are free to download with your Apple ID. You can also sign and install apps on your personal devices using that same Apple ID. If you want to distribute or sell apps on the App Store,...

AJAX stands for "Asynchronous JavaScript and XML". Although the name includes XML, JSON is more often used due to it's simpler formatting and lower redundancy. AJAX allows the user to communicate with external resources without reloading the webpage. AJAX stands for Asynchronous Java...

Python is a widely used programming language. It is: High-level: Python automates low-level operations such as memory management. It leaves the programmer with a bit less control but has many benefits including code readability and minimal code expressions. General-purpose: Python is b...