Tutorial by Topics: d

To run the example, the command syntax is: bin/hadoop jar hadoop-*-examples.jar wordcount [-m <#maps>] [-r <#reducers>] <in-dir> <out-dir> To copy data into HDFS(from local): bin/hadoop dfs -mkdir <hdfs-dir> //not required in hadoop 0.17.2 and later bin/h...

Dropwizard pulls together stable, mature libraries from the Java ecosystem into a simple, light-weight package that lets you focus on getting things done. Dropwizard has out-of-the-box support for sophisticated configuration, application metrics, logging, operational tools, and much more, allowin...

Categoricals are a pandas data type, which correspond to categorical variables in statistics: a variable, which can take on only a limited, and usually fixed, number of possible values (categories; levels in R). Examples are gender, social class, blood types, country affiliations, observation time...

func (t T) exampleOne(i int) (n int) { return i } // this function will receive copy of struct func (t *T) exampleTwo(i int) (n int) { return i } // this method will receive pointer to struct and will be able to modify it

Operators are listed top to bottom, in descending precedence. Operators with the same number have equal precedence and the same associativity. :: The postfix operators: [] () T(...) . -> ++ -- dynamic_cast static_cast reinterpret_cast const_cast typeid The unary prefix operators: ++ -- * ...

XML Document Type Declaration commonly known as DTD is a way to describe precisely the XML language. DTDs check the validity of, structure and vocabulary of an XML document against the grammatical rules of the appropriate XML language. A DTD defines the structure and the legal elements and attribute...

Ada is an internationally standardized, high-level, object-oriented computer programming language that supports strong typing and structured programming. More information may be found here. VersionRelease DateAda 2012(TC-1)2016-04-01Ada 20122012-12-10Ada 20052007-01-01Ada 951995-12-10Ada 83198...

browser.pause() browser.debugger() This section explains how we can debug protractor tests.

The Elvis operator evaluates based on Groovy-Truth of the condition-part.

Possible Exceptions System.ArrayTypeMismatchException: Attempted to access an element as a type incompatible with the array. This exception can occur when attempting to bind a collection to a non-bindable property when XAML pre-compilation is enabled. A common example is attempting to bind ...

The Redis keyspace can be thought of as a hash table or dictionary mapping keys to data structures in the database. Redis provides a wide range of commands that work with keys to manage the keyspace, including the ability to remove keys, inspect key metadata, search for keys, and modify certain pro...

newInstance : To create single instance of Facebook helper class. loginUser : To login user. signOut : To log out user. getCallbackManager : To get callback for Facebook. getLoginCallback : To get callback for Login. getKeyHash : To generate Facebook Key Hash. ParameterDetailsTAGA Strin...