private void checkButton_Click(object sender, EventArgs e) //get data from hash table according to ID
{
try //try catching errors
{
if (inputBox.Text == null || inputBox.TextLength == 0) //alert if input is empty
{
MessageBox.Show("ID cannot be empty.");
}
else if (int.TryParse(inputBox.Text, out int isNumeric)) //alert if input is not numeric
{
if (allAnimals.TryGetValue(isNumeric, out livestock)) //get data of ID from hash table
{
animalIDLabel.Text = livestock.getID().ToString(); //get id
if (livestock.getIsJersy() == true) //display jersey or not jersey
{
animalTypeLabel.Text = livestock.getType() + " - Jersey";
}
else
{
animalTypeLabel.Text = livestock.getType();
}
amountOfWaterLabel.Text = livestock.getAmountOfWater().ToString(); //get amount of water
dailyCostLabel.Text = livestock.getDailyCost().ToString(); //get daily cost
weightLabel.Text = livestock.getWeight().ToString(); //get weight
ageLabel.Text = livestock.getAge().ToString(); //get age
colourLabel.Text = livestock.getColour().ToString(); //get colour
if (livestock.getAmountOfMilk() == 0) //display n/a if not milk animal
{
amountOfMilkLabel.Text = "N/A";
}
else
{
amountOfMilkLabel.Text = livestock.getAmountOfMilk().ToString();
}
if (livestock.getAmountOfWool() == 0) //display n/a if not sheep
{
amountOfWoolLabel.Text = "N/A";
}
else
{
amountOfWoolLabel.Text = livestock.getAmountOfWool().ToString();
}
}
else
{
MessageBox.Show("Animal not registered.");
} //alert if ID not found
}
else
{
MessageBox.Show("Please enter ID as integer.");
}
}
catch (Exception exception)
{
MessageBox.Show(exception.Message); //show error type
}
}
public String profitInOrder() //Retreive profit in desending order from binary tree
{
string str = "ID\t| Profit\r\n--------------------------\r\n";
profitInOrder(livestock);
return(str);
void profitInOrder(Livestock livestock) //recursive function
{
if (livestock == null)
{
return;
}
profitInOrder(livestock.right); //most right is the biggest number
str += livestock.getID().ToString() + "\t| " + Math.Round(livestock.getProfit()).ToString() + "\r\n";
profitInOrder(livestock.left); //if right is null, get left
}
}