I've never had experience with a program that has taken methods from another class. But I have created a public class that has methods that im suppose to import to another java program to test. I dont know how to do this.
This is my code with the testing in the main method and the other methods i should have imported.
Code
import java.io.*;
import java.util.Scanner;
import java.util.Arrays;
public class Static_Methods
{
public static void main(String[] args) throws IOException
{
File input = new File("Scores.txt");
Scanner keyboard = new Scanner(input);
int[] scores = new int[36];
int total = 0;
int average;
int highest;
int lowest;
int median;
int[] deviations = new int[36];
PrintWriter output = new PrintWriter("deviations.txt");
double stdDev;
int counter = 0;
float comparison = 0;
System.out.println("Scores:");
for(int i=0;i<scores.length;i++)
{
scores[i] = keyboard.nextInt();
System.out.print(scores[i] + " ");
if((i+1)%4 ==0)
{
System.out.print("\n");
}
}
System.out.println();
total = getTotal(scores);
average = getAverage(total, scores);
System.out.println("Average: " + average);
Arrays.sort(scores);
highest = getHighest(scores);
System.out.println("Highest Score: " + highest);
lowest = getLowest(scores);
System.out.println("Lowest Score: " + lowest);
median = getMedian(scores);
System.out.println("Median: " + median + "\n");
getPosition(scores);
getDeviations(scores, deviations, average);
for(int i=0;i<deviations.length;i++)
{
output.print(deviations[i] + " ");
}
stdDev = getStdDev(deviations);
System.out.println("Standard Deviation: " + stdDev);
for(int i=0;i<scores.length;i++)
{
if((average-stdDev)<= scores[i] && scores[i]<=(average+stdDev))
{
counter++;
}
}
comparison = ((float)counter / (float)(scores.length)) * 100;
System.out.println("Scores within one standard deviation: " + counter);
if(60 <= comparison && comparison <=70)
{
System.out.println("The percent of scores within one deviation is " + comparison + "% and is similar to the Normal Distribution.");
}
else if(comparison<60)
{
System.out.println("The percent of scores within one deviation is " + comparison + "% and is lower to the Normal Distribution.");
}
else if(comparison>60)
{
System.out.println("The percent of scores within one deviation is " + comparison + "% and is higher to the Normal Distribution.");
}
output.close();
}
/*Method named getTotal to get the total of all the
scores to calculate the average*/
public static int getTotal(int[] scores) throws IOException
{
int total = 0;
for(int i=0;i<scores.length;i++)
{
total += scores[i];
}
return total;
}
//Method using the total from getTotal to calculate the average
public static int getAverage(int total, int[]scores) throws IOException
{
int average;
average = total/(scores.length);
return average;
}
//Method to get the highest value in the array
public static int getHighest(int[] scores) throws IOException
{
int highest;
highest = scores[scores.length-1];
return highest;
}
//Method to get the lowest value in the array
public static int getLowest(int[] scores) throws IOException
{
int lowest;
lowest = scores[0];
return lowest;
}
//Method to get the median value in the array
public static int getMedian(int[] scores) throws IOException
{
int median;
int lowerMid;
int higherMid;
lowerMid = scores[(int)(scores.length/2)];
higherMid = scores[(int)((scores.length/2)+1)];
if(higherMid == lowerMid)
{
median = lowerMid;
}
else
{
median = (lowerMid+higherMid)/2;
}
return median;
}
//Method to find the position in the original array for values 68,77,99
public static void getPosition(int[] scores) throws IOException
{
boolean found68 = false;
boolean found77 = false;
boolean found99 = false;
int position68 = 0;
int position77 = 0;
int position99 = 0;
for(int i=0;i<scores.length;i++)
{
if(scores[i] == 68)
{
found68 = true;
position68 = i+1;
}
else if(scores[i] == 77)
{
found77 = true;
position77 = i+1;
}
else if(scores[i] == 99)
{
found99 = true;
position99 = i+1;
}
}
if(found68)
{
System.out.println("68 is in position " + position68 + " in the array.");
}
else
{
System.out.println("68 was not found.");
}
if(found77)
{
System.out.println("77 is in position " + position77 + " in the array.");
}
else
{
System.out.println("77 was not found.");
}
if(found99)
{
System.out.println("99 is in position " + position99 + " in the array.\n");
}
else
{
System.out.println("99 was not found.\n");
}
}
//Method to get the deviation of each number from the mean
public static void getDeviations(int[] scores, int[] deviations, int average)
{
for(int i=0;i<scores.length;i++)
{
deviations[i] = scores [i] - average;
}
}
//Method to get the Standard Deviation of the array
public static double getStdDev(int[] deviations)
{
double stdDevTotal=0;
double stdDev;
for(int i=0;i<deviations.length;i++)
{
stdDevTotal += Math.pow(deviations[i], 2);
}
stdDev = Math.sqrt((stdDevTotal/(deviations.length)));
return stdDev;
}
}