I have error in arrayindexoutofbounds and I've looked up many places and not been able to spot the mistake

Main Class:
public class Main {
private static String [] Countries={"UK", "Italy",
"Germany", "Thailand","Denmark"};
static double average[] = new double[5];
double[] results = new double[5];
public static String getWinner(ArrayList<MissUniverse>alist){
int champion = 0;
for (int s = 0; s < alist.size(); s++){
if (alist.get(s).average() > alist.get(0).average() ) {
winner= s;
}
}
return alist.get(winner).getCountry();
}
public static String firstRunnerUp(ArrayList<MissUniverse>alist){
int firstrunnerUp =0;
for (int s = 0; s < alist.size(); s++){
if (alist.get(s).average() > alist.get(0).average() && alist.get(s).getCountry() != getWinner(alist) ) {
firstrunnerUp = s;
}
}
return alist.get(firstrunnerUp).getCountry();
}
public static void main (String[] args){
ArrayList<MissUniverse> alist = new ArrayList<MissUniverse>();
MissUniverse missUniverse[] = new MissUniverse[Countries.length];
for(int i=0;i<Countries.length;i++)
{
missUniverse[i] = new MissUniverse(Countries[i]);
missUniverse[i].getScore();
alist.add(missUniverse[i]);
}
System.out.printf("%-15s%-5s%-5s%-5s%-5s%-5s%-10s",
"Countries","1","2","3","4","5","Average");
System.out.println();
for (int i = 0; i < Countries.length; i++){
System.out.print(Countries[i]);
System.out.print("    ");
missUniverse[i].printInfo();
System.out.printf("%5.1f", alist.get(i).average() );  ///this line 
System.out.println();
}
System.out.println("The result is");
System.out.println("Winner: Miss " + getWinner(alist) );
System.out.println("1st Runner Up: Miss " + firstRunnerUp(alist) );
}
}

MissUniverse class:

class MissUniverse { 
public static int SIZE=5;
private String country;
private double[] score;  
public MissUniverse(String country){
this.country = country;
score = new double [SIZE];
}
public String getCountry(){
return country;
}
public void getScore(){
for (int i=0;i<score.length;i++)
{
score[i] = Math.random()*10;
}
}
public void setCountry(String newCountry) {
this.country = newCountry;
}
private int highest(){
int i;
double highest;
highest = score[0];
for (i = 0; i <score.length; i++)
{
if (highest < score [i])
{
highest = score[i] ;
}
}
return i;
}
private int lowest(){      
int i;
double lowest;
lowest = score[0];
for (i = 0; i <score.length; i++)
{
if (lowest > score [i])
{
lowest = score[i];
}
}
return i;  
}
public double average(){
double sum = 0.0;
for (int i = 0; i < score.length; i++){
sum +=  score[i];
}
double average;
average = (sum - score[lowest()] - score[highest()] )/ score.length -2;
}
public void printInfo(){
for(int i=0;i< score.length;i++){  
System.out.printf("%-5.1f",score[i]);
}
}
}

The error:

Countries      1    2    3    4    5    Average   
UK    3.3  5.8  6.6  4.8  0.2  Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5
at MissUniverse.average(Main.java:121)
at Main.main(Main.java:50)

I think the problem is in the average() or lowest() or highest() methods but I cant find the bug. I dont think there is anything wrong in those methods that can lead to counting outside the array length (length is 8) and index is 0-7. I've looked at other links in stackoverflow but I can't find whats wrong. I hope someone can help me?

The output I am trying to achieve is:

Countries       1    2    3    4    5   Average   
UK             6.2  2.5  9.7  4.3  0.1  3.4
Italy          7.1  1.2  1.6  5.5  1.9  3.7
Germany        8.5  3.3  6.7  4.0  6.0  5.9
Thailand       5.3  8.5  1.5 10.0  2.7  4.1
Denmark        3.1  4.9  5.4  0.8  3.2  3.4
The result is:
Winner: Miss Germany
1st runner up: Miss Thailand

The problem is actually in your average method. This line:

average = (sum - score[lowest()] - score[highest()] )/ score.length -2;

Needs to be changed to:

average = (sum - lowest() - highest() )/ score.length -2;

Remember that all indices start at 0 in arrays.

You also forgot to return a value, so you need to put return average; at the end of the average method. Also, in your getWinner method, you need to declare the variable winner by putting int winner = 0; at the beginning of the getWinner method.

highest() also needs to be edited to return highest;, and lowest() needs to be edited to return lowest;. You will need to change those return types to double to make this work.