MyLab Programming with Pearson eText -- Access Card -- for Introduction to Java Programming and Data Structures, Comprehensive Version
11th Edition
ISBN: 9780134672816
Author: Liang
Publisher: PEARSON
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Chapter 30.2, Problem 30.2.4CP
Explanation of Solution
Expression of “map” type for given scenario:
map.entrySet().stream().mapToDouble(e->e.getValue()).sum()
Explanation:
The “entrySet()” was retrieved all elements in map and add all the double values using aggregate method “sum()”. It fetch the double values using the method “mapToDouble()”.
Program:
//Import necessary package
import java.util.stream.Stream;
import java.util...
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Chapter 30 Solutions
MyLab Programming with Pearson eText -- Access Card -- for Introduction to Java Programming and Data Structures, Comprehensive Version
Ch. 30.1 - Prob. 30.1.1CPCh. 30.2 - Prob. 30.2.1CPCh. 30.2 - Prob. 30.2.2CPCh. 30.2 - Prob. 30.2.3CPCh. 30.2 - Prob. 30.2.4CPCh. 30.3 - Prob. 30.3.1CPCh. 30.3 - Prob. 30.3.2CPCh. 30.3 - Prob. 30.3.3CPCh. 30.3 - Prob. 30.3.4CPCh. 30.3 - Given an array names in Listing 30.1, write the...
Ch. 30.4 - Prob. 30.4.1CPCh. 30.4 - How do you create a parallel stream?Ch. 30.4 - Prob. 30.4.3CPCh. 30.4 - Prob. 30.4.4CPCh. 30.4 - Prob. 30.4.5CPCh. 30.4 - Write a statement to obtain an array of 1000...Ch. 30.5 - Prob. 30.5.1CPCh. 30.5 - Prob. 30.5.2CPCh. 30.5 - Prob. 30.5.3CPCh. 30.5 - Prob. 30.5.4CPCh. 30.6 - Prob. 30.6.1CPCh. 30.7 - Prob. 30.7.1CPCh. 30.8 - Can the following code be used to replace line 19...Ch. 30.8 - Prob. 30.8.2CPCh. 30.8 - Prob. 30.8.3CPCh. 30.8 - Prob. 30.8.4CPCh. 30.8 - Write the code to obtain a one-dimensional array...Ch. 30 - Prob. 30.1PECh. 30 - Prob. 30.2PECh. 30 - Prob. 30.3PECh. 30 - (Print distinct numbers) Rewrite Programming...Ch. 30 - Prob. 30.5PECh. 30 - Prob. 30.6PECh. 30 - Prob. 30.7PECh. 30 - Prob. 30.8PECh. 30 - Prob. 30.9PECh. 30 - Prob. 30.10PECh. 30 - Prob. 30.11PECh. 30 - (Sum the digits in an integer) Rewrite Programming...Ch. 30 - (Count the letters in a string) Rewrite...Ch. 30 - Prob. 30.14PECh. 30 - (Display words in ascending alphabetical order)...Ch. 30 - Prob. 30.16PECh. 30 - Prob. 30.17PECh. 30 - (Count the occurrences of words in a text file)...Ch. 30 - (Summary information) Suppose the file test.txt...
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