The three levels inheritance hierarchy is shown in the UML below. A) A set of pre-conditions, post-conditions and invariants are given as below. pre-condition: 0
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
The three levels inheritance hierarchy is shown in the UML below.
A) A set of pre-conditions, post-conditions and invariants are given as below.
pre-condition: 0<input <100
pre-condition: 0<input <50
pre-condition: 0< input < 1000
post-condition: Finds all the characters that are repeated more than 5 times in the parentField in the interval of [0, input) and returns them in a form of a string.
post-condition: Finds all the duplicated characters in the parentField in the interval of [0, input) and returns them in a form of a string, while it labels the number of the duplication before the character
post-condition: Finds all the duplicated characters in the parentField in the interval of [0, input) and returns them in a form of a string.
invariant: parentFiled remains unchanged and contains letters only.
invariant: parentFiled remains unchanged and contains letters and numbers only.
invariant: parentFiled remains unchanged.
Specify to which class's methodA (Parent's methodA, Child's methodA and Grandchild's methodA), these DBCs (design by contracts) belong and why?
B) One of the methods in this hierarchy throws an Exception . Which one can it be?
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