//Population class

int popSize = 10;
Individual[] individuals = new Individual[10];
//Initialize population
public void initializePopulation(int size) {
for (int i = 0; i < individuals.length; i++) {
int fittest = 0;
individuals[i] = new Individual();
}
}

//Get the fittest individual
public Individual getFittest() {
int maxFit = Integer.MIN_VALUE;
for (int i = 0; i < individuals.length; i++) {
if (maxFit <= individuals[i].fitness) {
maxFit = i;
}
}

//Get the second most fittest individual
public Individual getSecondFittest() {
int maxFit1 = 0;
int maxFit2 = 0;
//Select the most fittest individual
for (int i = 0; i < individuals.length; i++) {
if (individuals[i].fitness > individuals[maxFit1].fitness) {
maxFit2 = maxFit1;
maxFit1 = i;
} else if (individuals[i].fitness > individuals[maxFit2].fitness) {
maxFit2 = i;
}
}
return individuals[maxFit2];
}

//Get index of least fittest individual
public int getLeastFittestIndex() {
int minFit = 0;
for (int i = 0; i < individuals.length; i++) {
if (minFit >= individuals[i].fitness) {
minFit = i;
}
}
return minFit;
}

//Calculate fitness of each individual
public void calculateFitness() {

for (int i = 0; i < individuals.length; i++) {
individuals[i].calcFitness();
}
getFittest();
}

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