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Chapter 30.3, Problem 30.3.2CP

Explanation of Solution

Purpose of given code:

Purpose of given code is to display the count value, maximum value, minimum value, sum value, and average value of integer array “numbers”.

Given code:

//Variable definition

int[] numbers = {1, 4, 2, 3, 1};

/*Error #1*/

DoubleSummaryStatistics stats = DoubleStream.of(numbers).summaryStatistics();

/*Print statement with aggregate functions*/

/*Error #2*/

System.out.printf("The summary of the stream is\n%-10s%10d\n" +"%-10s%10.2f\n%-10s%10.2f\n%-10s%10.2f\n%-10s%10.2f\n","  Count:", stats.getCount(), "  Max:", stats.getMax(),"  Min:", stats.getMin(), "  Sum:", stats.getSum(),"  Average:", stats.getAverage());

Error #1:

The values of variable “numbers” are in “int” array. The above program uses “DoubleSummaryStatistics” instead of “IntSummaryStatistics”.

Error #2:

The resultant minimum, maximum, and sum value is integer...

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Chapter 30 Solutions

Instructor Solutions Manual For Introduction To Java Programming And Data Structures, Comprehensive Version, 11th Edition

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