JAVAThe mean of a list of numbers is its arithmetic average. The .pdf
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The document explains how to calculate the mean and median of a list of numbers in Java, providing an example list and its calculations. It instructs the reader to create an application that accepts five integers and displays their mean and median, followed by an updated version to allow up to 20 integers. A source code implementation is included for the calculations and main method.
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![return mean;
}
public double median (List a)
{
int middle = a.size()/2;
if (a.size() % 2 == 1) {
return a.get(middle);
}
else {
return (a.get(middle-1) + a.get(middle)) / 2.0;
}
}
class t {
public static void main (String[]args)
{
methods m = new methods();
List c = Arrays.asList(1,4,7,8,10);
Collections.sort(c); System.out.println(m.median(c)); System.out.println(m.mean(c));
}
}](https://image.slidesharecdn.com/javathemeanofalistofnumbersisitsarithmeticaverage-230704163833-5716d578/85/JAVAThe-mean-of-a-list-of-numbers-is-its-arithmetic-average-The-pdf-2-320.jpg)
JAVAThe mean of a list of numbers is its arithmetic average. The .pdf
- 1. JAVA: The mean of a list of numbers is its arithmetic average. The median of a list is its middle value when the values are placed in order. For example, if a list contains 1, 4, 7, 8, and 10, then the mean is 6 and the median is 7. Write an application that allows you to enter five integers and displays the values, their mean, and their median. Save the file as MeanMedian.java RevisetheMeanMedianclasssothattheusercanenteranynumberofvaluesup to 20. If the list has an even number of values, the median is the numeric average of the values in the two middle positions. Save the file as MeanMedian2.java Solution Source code: import java.util.*; class methods { public int sum (List a) { if (a.size() > 0) { int sum = 0; for (Integer i : a) { sum += i; } return sum; } return 0; } public double mean (List a) { int sum = sum(a); double mean = 0; mean = sum / (a.size() * 1.0);
- 2. return mean; } public double median (List a) { int middle = a.size()/2; if (a.size() % 2 == 1) { return a.get(middle); } else { return (a.get(middle-1) + a.get(middle)) / 2.0; } } class t { public static void main (String[]args) { methods m = new methods(); List c = Arrays.asList(1,4,7,8,10); Collections.sort(c); System.out.println(m.median(c)); System.out.println(m.mean(c)); } }