B) observe hazards in your environment.
Answer:
Option (4) is the correct answer.
Explanation:
In Java programming language ,array collection starts from 0 index location and ends in a size-1 index location. So to access the last elements the user needs to use a[Size-1] statement. so to modify the value of the last location of the array the user needs to use "a[size-1]= element;".
But when the user wants to add some new value to the end of the array list collection then he needs to use the statement--
a.add(element); //where add is a function, element is a value and a is a array list object.
Another option is invalid because--
- Option 1 is not the correct because "a[3]=element;" modify the value of the 3rd element of the array.
- Option 2 gives a compile-time error because add functions bracts are not closed.
- Option 3 gives the error because a[4] gives the location of the 5th element of the array but the above question says that a is defined with 4 elements.
The one among the options that is an example of how cookies are used to customize advertisements based on your history.
<h3>What do cookies do?</h3>
A cookie is known to be a kind of a small text file that is said to be often saved on your computer if a person do visit any kind of websites.
Note also that a cookie is often used to get one to often remember settings that they have their last visit to any website.
For example Amazon is known to often cookies to help to know if or when a person revisit the site.
Hence, The one among the options that is an example of how cookies are used to customize advertisements based on your history.
Learn more about cookies from
brainly.com/question/14102192
#SPJ1
Answer:
if u have a question can I see it
Explanation:
so I can know the answer choose
