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Stream API provides lots of built-in functionality to help in performing operations on a collection using a stream pipeline. The API is declarative programming that makes the code precise and less error-prone. In Java 9, few useful methods have added to Stream API.Stream.iterate(): This method can be been used as stream version replacement for traditional for-loops.Stream.takeWhile(): This method can be used in a while loop that takes value while the condition is met.Stream.dropWhile(): This method can be used in a while loop that drops value while the condition is met.In the below example, we can implement the static methods: iterate(), takeWhile(), and dropWhile() methods of Stream ... Read More
JShell is an interactive Java Shell tool that executes code from the JShell and instantly displays an output. JShell is the REPL (Read-Evaluate-Print-Loop) tool that can run from the command-line prompt.In JShell, there is an option to load a script on startup that includes some special predefined options. These can be specified using the "--startup" flag passing in either a filename or one of DEFAULT, JAVASE, and PRINTING. We can use "/list -start" comamnd to see all startup snippets to be evaluated.DEFAULT: It loads the default behavior. This acts the same as if this is not specified at all.JAVASE: It imports all ... Read More
In this article we will be discussing the working, syntax and examples of map::at() function in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map::at()?map::at() function is an inbuilt function in C++ STL, which is defined in header file. at() is used to access a ... Read More
In this article we will be discussing the working, syntax and examples of map::size() function in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map::size()?map::size() function is an inbuilt function in C++ STL, which is defined in header file. size() is used to check the ... Read More
In this article we will be discussing the working, syntax and examples of map::empty() function in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map::empty()?map::empty() function is an inbuilt function in C++ STL, which is defined in header file. empty() is used to check whether ... Read More
In this article we will be discussing the working, syntax and examples of map::begin() and map::end() functions in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map::begin()?map::begin() function is an inbuilt function in C++ STL, which is defined in header file. begin() is used to ... Read More
In this article we will be discussing the working, syntax and examples of map::at() and map::swap() functions in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map::at()?map::at() function is an inbuilt function in C++ STL, which is defined in header file. at() is used to ... Read More
In this article we will be discussing the working, syntax and example of map equal ‘=’ operator in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map equal to ‘=’ operator?map::operator= is an equal to operator. This operator is used to copy the elements from ... Read More
In this article we will be discussing the working, syntax and examples of map::insert() function in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map::insert()?map::insert() function is an inbuilt function in C++ STL, which is defined in header file. insert() is used to insert new ... Read More
In this article we will be discussing the working, syntax and examples of map::clear() function in C++ STL.What is a Map in C++ STL?Maps are the associative container, which facilitates to store the elements formed by a combination of key value and mapped value in a specific order. In a map container the data is internally always sorted with the help of its associated keys. The values in the map container are accessed by its unique keys.What is a map::clear()?map::clear() function is an inbuilt function in C++ STL, which is defined in header file. clear() is used to remove all ... Read More