public class Farm$\{$

private String farmName;

private Animal$[]$ animals;

private int numAnimals;

public static void main$($String$[]$ args$)\{$

Farm$[]$ farm $=$ new Farm$[10]$;

Animal lion $=$ new Animal$("$lion$",1999,12,\text{'}$f$\text{'})$;

lion.printDetails$()$;

farm$[0]=$ new Farm$()$;

farm$[0].$addAnimal$($lion$)$;

$\}$

public Farm$()\{$

animals $=$ new Animal$[10]$;

farmName $=""$;

numAnimals $=0$;

$\}$

public Farm$($String farmName$)\{$

this.farmName $=$ farmName;

animals $=$ new Animal$[10]$;

numAnimals $=0$;

$\}$

public Farm$($int maxAnimals$)\{$

animals $=$ new Animal$[$maxAnimals $>0?$ maxAnimals : $0]$;

farmName $=$ "farm of $"+$ maxAnimals;

numAnimals $=0$;

$\}$

public Farm$($java$.$lang.String farmName, int maxAnimals$)\{$

this.farmName $=$ farmName;

animals $=$ new Animal$[$maxAnimals $>0?$ maxAnimals : $0]$;

numAnimals $=0$;

$\}$

public void setFarmName$($String name$)\{$

farmName $=$ name;

$\}$

public String getFarmName$()\{$

return farmName;

$\}$

public void addAnimal$($Animal a$)\{$

if $($numAnimals $>=$ animals.length$)\{$

$//$resizeAnimalArray$()$;

$\}$

animals$[$numAnimals$]=$ a;

numAnimals $+=1$;

$\}$

public Animal getAnimal$($int index$)\{$

if $($index $>$ numAnimals $||$ index $<0)\{$

return null;

$\}$

else $\{$

return animals$[$index$]$;

$\}$

$\}$

public int getNumAnimals$()\{$

return numAnimals;

$\}$

public Animal getFirstAnimal$()\{$

return getAnimal$(0)$;

$\}$

public Animal getLastAnimal$()\{$

return getAnimal$($numAnimals$-1)$;

$\}$

public Animal$[]$ getAnimals$()\{$

return animals;

$\}$

public Animal removeAnimal$($int index$)\{$

Animal removedAnimal $=$ null;

if $($index $>=0$ && index $<$ numAnimals$)\{$

removedAnimal $=$ animals$[$index$]$;

for $($int i $=$ index; i $<$ numAnimals $-1$; i$++)\{$

animals$[$i$]=$ animals$[$i$+1]$;

$\}$

animals$[$numAnimals$-1]=$ null;

numAnimals $-=1$;

$\}$

return removedAnimal;

$\}$

public void removeAllAnimals$()\{$

for $($int i $=0$; i $<$ numAnimals; i$++)\{$

animals$[$i$]=$ null;

$\}$

numAnimals $=0$;

$\}$

public double getTotalWeightOfAllAnimals$()\{$

double sum $=0\mathrm{.}0$;

for $($int i $=0$; i $<$ numAnimals; i$++)\{$

Animal a $=$ animals$[$i$]$;

sum $+=$ a$.$getWeight$()$;

$\}$

return sum;

$\}$

public double getAverageWeightOfAllAnimals$()\{$

double sum $=$ getTotalWeightOfAllAnimals$()$;

return sum $/$ numAnimals;

$\}$

public int getNumberOfAnimalsAboveWeight$($double weight$)\{$

int numOfAboveAvg $=0$;

for $($int i $=0$; i $<$ numAnimals; i$++)\{$

if $($animals$[$i$].$getWeight$()>$ weight$)\{$

numOfAboveAvg$++$;

$\}$

$\}$

return numOfAboveAvg;

$\}$

public int getNumberOfAnimalsBelowWeight$($double weight$)\{$

int numOfBelowAvg $=0$;

for $($int i $=0$; i $<$ numAnimals; i$++)\{$

if $($animals$[$i$].$getWeight$()<$ weight$)\{$

numOfBelowAvg$++$;

$\}$

$\}$

return numOfBelowAvg;

$\}$

public void increaseWeightOfAllAnimals$()\{$

for $($int i $=0$; i $<$ numAnimals; i$++)\{$

animals$[$i$].$gainWeight$()$;

$\}$

$\}$

public void increaseWeightOfAllAnimals$($double weight$)\{$

for $($int i $=0$; i $<$ numAnimals; i$++)\{$

animals$[$i$].$gainWeight$($weight$)$;

$\}$

$\}$

public void printAllDetails$()\{$

int length $=$ animals.length;

System.out.printf$("$FarmName: $\%20$s $|$ Number of Animals: $\%4$d $|$ Farm Size: $\%4$d

$",$ farmName, numAnimals, length$)$;

for $($int i $=0$; i $<$ numAnimals; i$++)\{$

animals$[$i$].$printDetails$()$;

$\}$

$\}$

$\}$