Define Passing by value
Passing by value: In this process separate memory builds for formal arguments and when any modifications done on formal variables, it will not influence the real variables. Therefore actual variables are preserved in this situation.
State the term multi threading.
You will need to create a BottomUpTwoThreeFourTree class, with a BottomUpTwoThreeTreeFourTree constructor which keeps no parameters. BottomUpTwoThreeTreeFourTree will require an insert(int x) method, which will insert the value 
Give some examples of applications which can benefit from using XML?
Unicode: It is a 16-bit character set designed to make it simpler to exchange and exhibit information which makes use of a broad range of dissimilar languages and symbols.
Main method: It is the beginning point for program execution public static void main(String[] args)
Anonymous object: An object formed without an identifier. They are generally formed as array elements, actual arguments or method outcomes. For example: private Point[] vertices = { &n
Keyword: They are reserve word containing special meaning of the language and cannot be employed as identifier.
What is the Block Started by the Symbol?
Octal character constant: It is a character constant in the form of \ddd, where each d is an octal digit. This might be employed for characters with a Unicode value in the range of 0 to 255.
Explain the major elements of the ADO object model and it’s used?
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