5. Now examine the for-loops in the above Java program. (assume that we have the have replaced the array with an Array a) Which ArrayList method should you use to control the for-loop iterations? b) Explain why the first for-loop cannot be controlled by that ArrayList method (but the other two for-loops can). Here is a quick review of how array elements are modified and accessed: 1. public class BasicArray{ 2. public static void main(String[] args) 3. int] basic new int [4]; 4. for (int i=0; i
5. Now examine the for-loops in the above Java program. (assume that we have the have replaced the array with an Array a) Which ArrayList method should you use to control the for-loop iterations? b) Explain why the first for-loop cannot be controlled by that ArrayList method (but the other two for-loops can). Here is a quick review of how array elements are modified and accessed: 1. public class BasicArray{ 2. public static void main(String[] args) 3. int] basic new int [4]; 4. for (int i=0; i
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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![5. Now examine the for-loops in the above Java program. (assume that we have the have replaced the array with an ArrayList)
a) Which ArrayList method should you use to control the for-loop iterations?
b) Explain why the first for-loop cannot be controlled by that ArrayList method (but the other two for-loops can).
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;
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
(Parameters)
Value Description
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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6cf78908-a1f9-4330-9ece-f4021df10613%2F0ed2db06-cbf1-49a2-b038-d5abcc012bd5%2Fj76opsb_processed.png&w=3840&q=75)
Transcribed Image Text:5. Now examine the for-loops in the above Java program. (assume that we have the have replaced the array with an ArrayList)
a) Which ArrayList method should you use to control the for-loop iterations?
b) Explain why the first for-loop cannot be controlled by that ArrayList method (but the other two for-loops can).
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;
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
(Parameters)
Value Description
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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