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.
Answer: (A) full backup
Explanation: A backup strategy is a term used to describe the various effective approach engaged in creating a backup for data or information.
A FULL BACK UP IS THE VARIOUS APPROACH AND SYSTEMS PUT IN PLACE BY A COMPUTER USER OR AN INFORMATION TECHNOLOGY EXPERT IN ORDER TO CREATE AN ADDITIONAL SAMPLE OR COPY OF AN INFORMATION OR A DATA IN S SINGLE BACKUP.
Answer:
thats what i was about to ask. im not sure
Explanation:
sorry '-'
