QUESTION ONE
1.1 The purpose of keyword “new”
The keyword new is used to instantiate or create java class object.
It is also used to create a new array. String empName=new string (“Rocky”); The above statement creates a new string object of name empName and value as Rocky.

1.2 A default constructor is create if you don’t define any constructors in your class. It
Simply is a no argument constructor which does nothing. The instance variables get set to whatever that default constructors says. If the default constructor *doesn’t* say, then there’s two ways things can go:
1. If the language has a super-default behaviour for ‘new()’ even if there is no constructors, then the language default will (often, this is set “set every-thing in sight to zero”).
2. If there isn’t a language-specified default, then you get whatever random stuff happened to be in memory.
1.3 If your class needs to share values, it needs someplace in memory to store this data. An instance variable reserves memory for this data your class needs. Lets assume you want to add a place for a string on int variable, You can use an instance variable to reserve that memory for the lifetime of the object. Each object will receive unique memory for this variables.
It’s much like a C struct;
Struct t_something{
Int a; int b;
}
The struct declares two fields (a and b). Each value may be read and written to, and the struct is large enough to hold its fields.
1.4 If single selection is a statement in java that evaluates to True or False meaning
If the statement results in True, the work gets done on the true side, if it’s evaluated False the True side gets ignored and the next line of code gets executed. For example: *while (x