STARTING OUT WITH C++FROM CONTROL STRU
18th Edition
ISBN: 9781323815458
Author: GADDIS
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 17.4, Problem 17.20CP
Program Plan Intro
Map:
- Maps are associative container. It is also called as “key-value” pairs.
- When map class is used in a program, the header file “#include<map>” should be used.
- It does not require more memory.
- There are types of maps. They are:
- Multimap – they are associative containers.
- Unordered-map – they are unordered associative containers.
Syntax:
map<datatype, datatype> map_Name = {key, value};
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
How does the map react when a new entry is added with an already existing key?
A map is a container that stores a collection of ordered pairs, each pair consists of a key and a value, <key, value>. Keys must be unique. Values need not be unique, so several keys can map to the same values. The pairs in the map are sorted based on keys.
Group of answer choices
True
False
How is a map different from other Java data structures?
A
Each data element connects to the next element in the map.
B
It's a data structure that stores data pairs: keys and their associated values.
C
Each data element can connect to multiple related elements in a map.
D
It's a data structure that keeps its data sorted.
Chapter 17 Solutions
STARTING OUT WITH C++FROM CONTROL STRU
Ch. 17.2 - Prob. 17.1CPCh. 17.2 - Prob. 17.2CPCh. 17.2 - Prob. 17.3CPCh. 17.2 - Suppose you are writing a program that uses the...Ch. 17.2 - Prob. 17.5CPCh. 17.2 - Prob. 17.6CPCh. 17.2 - What does a containers begin() and end() member...Ch. 17.2 - Prob. 17.8CPCh. 17.2 - Prob. 17.9CPCh. 17.2 - Prob. 17.10CP
Ch. 17.3 - Write a statement that defines an empty vector...Ch. 17.3 - Prob. 17.12CPCh. 17.3 - Prob. 17.13CPCh. 17.3 - Write a statement that defines a vector object...Ch. 17.3 - What happens when you use an invalid index with...Ch. 17.3 - Prob. 17.16CPCh. 17.3 - If your program will be added a lot of objects to...Ch. 17.3 - Prob. 17.18CPCh. 17.3 - Prob. 17.19CPCh. 17.4 - Prob. 17.20CPCh. 17.4 - Write a statement that defines a nap named myMap....Ch. 17.4 - Prob. 17.22CPCh. 17.4 - Prob. 17.23CPCh. 17.4 - Prob. 17.24CPCh. 17.4 - Prob. 17.25CPCh. 17.4 - Prob. 17.26CPCh. 17.4 - Prob. 17.27CPCh. 17.5 - What are two differences between a set and a...Ch. 17.5 - Write a statement that defines an empty set object...Ch. 17.5 - Prob. 17.30CPCh. 17.5 - Prob. 17.31CPCh. 17.5 - Prob. 17.32CPCh. 17.5 - If you store objects of a class that you have...Ch. 17.5 - Prob. 17.34CPCh. 17.5 - Prob. 17.35CPCh. 17.6 - Prob. 17.36CPCh. 17.6 - What value will be stored in v[0] after the...Ch. 17.6 - Prob. 17.38CPCh. 17.6 - Prob. 17.39CPCh. 17.6 - Prob. 17.40CPCh. 17.6 - Prob. 17.41CPCh. 17.6 - Prob. 17.42CPCh. 17.7 - Prob. 17.43CPCh. 17.7 - Which operator must be overloaded in a class...Ch. 17.7 - Prob. 17.45CPCh. 17.7 - What is a predicate?Ch. 17.7 - Prob. 17.47CPCh. 17.7 - Prob. 17.48CPCh. 17.7 - Prob. 17.49CPCh. 17 - Prob. 1RQECh. 17 - Prob. 2RQECh. 17 - If you want to store objects of a class that you...Ch. 17 - If you want to store objects of a class that you...Ch. 17 - Prob. 5RQECh. 17 - Prob. 6RQECh. 17 - Prob. 7RQECh. 17 - If you want to store objects of a class that you...Ch. 17 - Prob. 9RQECh. 17 - Prob. 10RQECh. 17 - How does the behavior of the equal_range() member...Ch. 17 - Prob. 12RQECh. 17 - When using one of the STL algorithm function...Ch. 17 - You have written a class, and you plan to store...Ch. 17 - Prob. 15RQECh. 17 - Prob. 16RQECh. 17 - Prob. 17RQECh. 17 - Prob. 18RQECh. 17 - Prob. 19RQECh. 17 - Prob. 20RQECh. 17 - Prob. 21RQECh. 17 - A(n) ___________ container stores its data in a...Ch. 17 - _____________ are pointer-like objects used to...Ch. 17 - Prob. 24RQECh. 17 - Prob. 25RQECh. 17 - The _____ class is an associative container that...Ch. 17 - Prob. 27RQECh. 17 - Prob. 28RQECh. 17 - A _______ object is an object that can be called,...Ch. 17 - A _________ is a function or function object that...Ch. 17 - A ____________ is a predicate that takes one...Ch. 17 - A __________ is a predicate that takes two...Ch. 17 - A __________ is a compact way of creating a...Ch. 17 - T F The array class is a fixed-size container.Ch. 17 - T F The vector class is a fixed-size container.Ch. 17 - T F You use the operator to dereference an...Ch. 17 - T F You can use the ++ operator to increment an...Ch. 17 - Prob. 38RQECh. 17 - Prob. 39RQECh. 17 - T F You do not have to declare the size of a...Ch. 17 - T F A vector uses an array internally to store its...Ch. 17 - Prob. 42RQECh. 17 - T F You can store duplicate keys in a map...Ch. 17 - T F The multimap classs erase() member function...Ch. 17 - Prob. 45RQECh. 17 - Prob. 46RQECh. 17 - Prob. 47RQECh. 17 - Prob. 48RQECh. 17 - T F If two iterators denote a range of elements...Ch. 17 - T F You must sort a range of elements before...Ch. 17 - T F Any class that will be used to create function...Ch. 17 - T F Writing a lambda expression usually requires...Ch. 17 - T F You can assign a lambda expression to a...Ch. 17 - Prob. 54RQECh. 17 - Write a statement that defines an iterator that...Ch. 17 - Prob. 56RQECh. 17 - The following statement defines a vector of ints...Ch. 17 - Prob. 58RQECh. 17 - Prob. 59RQECh. 17 - The following code defines a vector and an...Ch. 17 - The following statement defines a vector of ints...Ch. 17 - Prob. 62RQECh. 17 - Prob. 63RQECh. 17 - Prob. 64RQECh. 17 - Look at the following vector definition: vectorint...Ch. 17 - Write a declaration for a class named Display. The...Ch. 17 - Write code that docs the following: Uses a lambda...Ch. 17 - // This code has an error. arrayint, 5 a; a[5] =...Ch. 17 - // This code has an error. vectorstring strv =...Ch. 17 - // This code has an error. vectorint numbers(10);...Ch. 17 - // This code has an error. vectorint numbers ={1,...Ch. 17 - Prob. 72RQECh. 17 - Prob. 73RQECh. 17 - // This code has an error. vectorint v = {6, 5, 4,...Ch. 17 - // This code has an error. auto sum = ()[int a,...Ch. 17 - Unique Words Write a program that opens a...Ch. 17 - Course Information Write a program that creates a...Ch. 17 - Prob. 3PCCh. 17 - File Encryption and Decryption Write a program...Ch. 17 - Prob. 5PCCh. 17 - Prob. 6PCCh. 17 - Prob. 7PCCh. 17 - Prob. 8PC
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- List collection views of a map interfacearrow_forwardComputer Science GIS Cartography Question: Name a couple of ways you could lessen the number of colors used in a class-type map.arrow_forward(Count entire words, not parts of words. For example rate and rated would be different counts. Say rate is there 10 times and rated is there 5 times, that should be the count not rate 15, rated 5. Don't count parts of words.) A Map is an interface that maps keys to values. The keys are unique and thus, no duplicate keys are allowed. A map can provide three views, which allow the contents of the map to be viewed as a set of keys, collection of values, or set of key-value mappings. In addition, the order of the map is defined as the order in which, the elements of a map are returned during iteration. The Map interface is implemented by different Java classes, including HashMap, HashTable, and TreeMap. Each class provides different functionality and can be either synchronized or not. Also, some implementations prohibit null keys and values, and some have restrictions on the types of their keys. A map has the form Map <k,v> where: K: specifies the type of keys maintained in…arrow_forward
- A map has the form Map <k,v> where: K: specifies the type of keys maintained in this map.V: defines the type of mapped values.Furthermore, the Map interface provides a set of methods that must be implemented. In this section, we will discuss about the most famous methods: clear: Removes all the elements from the map.containsKey: Returns true if the map contains the requested key.containsValue: Returns true if the map contains the requested value.equals: Compares an Object with the map for equality.get: Retrieve the value of the requested key.entrySet: Returns a Set view of the mappings contained in this map.keySet: Returns a Set that contains all keys of the map.put: Adds the requested key-value pair in the map.remove: Removes the requested key and its value from the map, if the key exists.size: Returns the number of key-value pairs currently in the map. Of interest to us is the TreeMap. Here is an example of TreeMap with a Map: import java.util.Map; import…arrow_forwardA map has the form Map <k,v> where: K: specifies the type of keys maintained in this map.V: defines the type of mapped values.Furthermore, the Map interface provides a set of methods that must be implemented. In this section, we will discuss about the most famous methods: clear: Removes all the elements from the map.containsKey: Returns true if the map contains the requested key.containsValue: Returns true if the map contains the requested value.equals: Compares an Object with the map for equality.get: Retrieve the value of the requested key.entrySet: Returns a Set view of the mappings contained in this map.keySet: Returns a Set that contains all keys of the map.put: Adds the requested key-value pair in the map.remove: Removes the requested key and its value from the map, if the key exists.size: Returns the number of key-value pairs currently in the map. Here is an example of TreeMap with a Map: import java.util.Map; import java.util.TreeMap; public class TreeMapExample {…arrow_forwardimport java.util.Map;public class Maps{ /** Looks up a color name and returns the color code. @param color the name of the color, like "red" @param codes a Map where the color name is the key @return the HTML color code if it is in the table, or the color name if it is not */ public static String getColorCode(String color, Map<String, String> codes) { /* code goes here */ }}arrow_forward
- Unique Values This function will receive a single map parameter known as a_map. a_map will contain a single letter as a string and numbers as values. This function is supposed to search a_map to find all values that appear only once in a_map. The function will create another map named to_ret. For all values that appear once in a_map the function will add the value as a key in to_ret and set the value of the key to the key of the value in a_map (swap the key-value pairs, since a_map contains letters to numbers, to_ret will contain Numbers to Letters). Finally, the function should return to_ret. Signature: public static HashMap<String, Integer> uniqueValues(HashMap<Integer, String> a_map) Example: INPUT: {0=M, 2=M, 3=M, 5=M, 6=n, 7=M, 9=M}OUTPUT: {n=6} INPUT: {0=A, 1=c, 2=c, 4=c, 5=a, 8=Q, 9=c}OUTPUT: {A=0, a=5, Q=8}arrow_forwardpython How to convert the first and the last character of each element n _student to uppercase? Hint :use the function map0 that return a map object(which is an iterator) of the results after applyingthe given function to each item of a qiven iterable (list, tuple etc.) Syntax : map(a function towhich map passes each element of given iterable, terable which is to be mapped)n_student=pd.Series(['Justine', 'nora', 'Ugur', 'lana', 'hiba', 'lola'])arrow_forwardComputer Science csv file "/dsa/data/all_datasets/texas.csv" Task 6: Write a function "county_locator" that allows a user to enter in a name of a spatial data frame and a county name and have a map generated that shows the location of that county with respect to other counties (by using different colors and/or symbols). Hint: function(); $county ==; plot(); add=TRUE.arrow_forward
- Evaluate the following expressions Mapping: map(timesTwo, [2, 4, 5]) map(timesTwo, [8]) map(timesTwo, []) map(addOne, map(timesTwo, [2, 2, 4, –3])) map(timesTwo, map (addOne, [2, 2, 4, –3])) Folding:* Example: foldFromLeft(plus, 7,[1,2] = ((7+1)+2=8+2=10 Example: foldFromRight(plus, 7,[1,2] = (1+(2+7))=1+9=10 foldFromLeft(plus, 7, [3, –8 9]) foldFromLeft(minus, 7, [3, –8, 9]) foldFromRight(minus, 7, [3, –8, 9]) foldFromLeft(minus, 7, map(timesTwo, [3, 0, 8]))arrow_forwardWhat are the advantages of using a link list instead of an array?arrow_forwardUsing Java programming language create a linked list named Cars with four elements: "SUV cars", "Pickup cars", "Sport cars", and "Sedan cars". Apply the following activities on the code you’ve created and provide screen shot of each result: Add a new element “Classic car” at the beginning of the linked list using iterator. Add a new element “Economic cars" after the element "Sedan Cars" using iterator. Print the LinkedList backward from the last element to the first element using hasPrevious()arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
New Perspectives on HTML5, CSS3, and JavaScriptComputer ScienceISBN:9781305503922Author:Patrick M. CareyPublisher:Cengage Learning
New Perspectives on HTML5, CSS3, and JavaScript
Computer Science
ISBN:9781305503922
Author:Patrick M. Carey
Publisher:Cengage Learning