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PlusMinus.java
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PlusMinus.java
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package warmup;
import java.util.Scanner;
public class PlusMinus {
private static final Scanner scanner = new Scanner(System.in);
public static void main(String[] args) {
int length = scanner.nextInt();
int[] array = getArray(length);
printFractions(array);
}
private static int[] getArray(int length) {
int[] array = new int[length];
for (int index = 0 ; index < array.length ; index++) {
array[index] = scanner.nextInt();
}
return array;
}
private static void printFractions(int[] array) {
double positives = getPositives(array);
double negatives = getNegatives(array);
double zeros = array.length - positives - negatives ;
System.out.println(positives / array.length);
System.out.println(negatives / array.length);
System.out.println(zeros / array.length);
}
private static double getPositives(int[] array) {
int count = 0;
for (int number : array) {
if (number > 0) count++;
}
return count;
}
private static double getNegatives(int[] array) {
int count = 0;
for (int number : array) {
if (number < 0) count++;
}
return count;
}
}