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:
Great!
Explanation:
I use mobile phone and i use it as exmergency phone
The German mathematician & physicist ”Carl Friedrich Gauss”
Born: April 30, 1777, Brunswick, Germany
Died: February 23, 1855, Göttingen, Germany
Answer:
Answer to the following question are,
Explanation:
Because these are the two associations data structures.
- Association List: are referred to that data type which contains the pair of the key and item in the Java Programming Language and Python Programming Language, it is called a dictionary data type.
- Tables or Hash Tables: are referred to that data type which converts the keys into the integer value.
