In your workshop project create a new Java class (BasicArrayList) and convert the above code to work for ArrayLists. 1. You will need to import at least one package, but you do not need to import java.lang, which is the fundamental Java package (the classes you automatically get when you write Java programs). 2. Convert the first for-loop first. Don't forget you cannot use the ArrayList method to control the for-loop (so just use the number 4). 3. Convert the last for-loop next, to view the contents of your ArrayList. 4. Convert the middle for-loop last. You may want to convert the one line of array code to two lines of ArrayList code. 5. Finally, before the last for-loop, add a new element (0) to position 0 of the ArrayList. You should print the contents of the modified ArrayList. Here is a quick review of how array elements are modified and accessed: public class BasicArray{ 2. public static void main(String[] args) int] basic new int [4]; for (int i=0; i

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In your workshop project create a new Java class (BasicArrayList) and convert the above code to work for ArrayLists.
1. You will need to import at least one package, but you do not need to import java.lang, which is the fundamental Java package (the classes you automatically get
when you write Java programs).
2. Convert the first for-loop first. Don't forget you cannot use the ArrayList method to control the for-loop (so just use the number 4).
3. Convert the last for-loop next, to view the contents of your ArrayList.
4. Convert the middle for-loop last. You may want to convert the one line of array code to two lines of ArrayList code.
5. Finally, before the last for-loop, add a new element (0) to position 0 of the ArrayList. You should print the contents of the modified ArrayList.
Here is a quick review of how array elements are modified and accessed:
1.
public class BasicArray{
2.
public static void main(String[] args)
int[] basic = new int[4];
for (int i=0; i<basic.length; i++) {
basic[i]=i+1;
5.
6.
}
7.
for (int i=0; i<basic.length; i++) {
basic[i] = basic[i]*5;
8.
9.
}
10.
for (int i=0; i<basic.length; i++) {
System.out.println(basic[i]);
11.
12.
}
13.
14. }
Because ArrayList is a Java class, we will need set and get methods to modify the ArrayList. The E
type refers to the base type of the ArrayList:
Return
Method
Description
(Parameters)
Value
Type
add(E element)
boolean Appends the specified element to the end of this list.
add(int index, E
element)
void
get(int index)
E
set(int index, E
element)
E
size()
int
Inserts the specified element at the specified position in this list.
Returns the element at the specified position in this list.
Replaces the element at the specified position in this list with the
specified element. Returns the element previously at the specified
position.
Returns the number of elements in this list.
Transcribed Image Text:In your workshop project create a new Java class (BasicArrayList) and convert the above code to work for ArrayLists. 1. You will need to import at least one package, but you do not need to import java.lang, which is the fundamental Java package (the classes you automatically get when you write Java programs). 2. Convert the first for-loop first. Don't forget you cannot use the ArrayList method to control the for-loop (so just use the number 4). 3. Convert the last for-loop next, to view the contents of your ArrayList. 4. Convert the middle for-loop last. You may want to convert the one line of array code to two lines of ArrayList code. 5. Finally, before the last for-loop, add a new element (0) to position 0 of the ArrayList. You should print the contents of the modified ArrayList. Here is a quick review of how array elements are modified and accessed: 1. public class BasicArray{ 2. public static void main(String[] args) int[] basic = new int[4]; for (int i=0; i<basic.length; i++) { basic[i]=i+1; 5. 6. } 7. for (int i=0; i<basic.length; i++) { basic[i] = basic[i]*5; 8. 9. } 10. for (int i=0; i<basic.length; i++) { System.out.println(basic[i]); 11. 12. } 13. 14. } Because ArrayList is a Java class, we will need set and get methods to modify the ArrayList. The E type refers to the base type of the ArrayList: Return Method Description (Parameters) Value Type add(E element) boolean Appends the specified element to the end of this list. add(int index, E element) void get(int index) E set(int index, E element) E size() int Inserts the specified element at the specified position in this list. Returns the element at the specified position in this list. Replaces the element at the specified position in this list with the specified element. Returns the element previously at the specified position. Returns the number of elements in this list.
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