Authors:
Walter Savitch ,kenrick Mock
Chapter:
Arrays
Exercise:
Programming Projects
Question:18 | ISBN:9780132830317 | Edition: 5
Question
Programming Project 4.13 asked you to create a BoxOfProduce class representing a box of produce to deliver from a CSA farm. The box contained exactly three items. Modify the class so it uses an array of type String to represent the items in the box. You can still start with three random items to place in the box, but your menu should be modified to allow the user to add additional items and still substitute one item for another. You will likely need to modify the constructor of the BoxOfProduce class and also add new methods.
Answer
Modified BoxOfPRoduce class:
ublic class BoxOfProduce
{
private final int SIZE_LENGTH=20;
int size;
private String[] itemType=new String[SIZE_LENGTH];
public BoxOfProduce(String[] items)
{
size=0;
setFirstFruit(items[0]);
setSecondFruit(items[1]);
setThirdFruit(items[2]);
}
public void add(String fruit)
{
if(this.size()<SIZE_LENGTH)
{
itemType[size]=fruit;
size=size+1;
}
}
public void insertAt(int index,String fruit)
{
itemType[index-1]=fruit;
}
public void setFirstFruit(String firstitemType)
{
itemType[size]=firstitemType;
size=size+1;
}
public void setSecondFruit(String seconditemType)
{
itemType[size]=seconditemType;
size=size+1;
}
public void setThirdFruit(String thirditemType)
{
itemType[size]=thirditemType;
size=size+1;
}
public int size()
{
return size;
}
public String toString()
{
String items="";
for (int index = 0; index < size; index++)
items+=itemType[index]+"\n";
return items;
}
}