Mastering Eiffel: A Comprehensive Guide to Eiffel Assignment Help Online from Enzo Jade's blog

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Eiffel is a powerful object-oriented programming language known for its simplicity, reliability, and scalability. Developed by Bertrand Meyer in the late 1980s, Eiffel has gained popularity in various domains, including software engineering, education, and research. Its unique design by contract approach emphasizes software correctness and robustness, making it a preferred choice for building critical systems.

At ProgrammingHomeworkHelp.com, we understand the challenges students face when learning Eiffel. From grasping the syntax to implementing advanced concepts, navigating through Eiffel assignments can be daunting. That's why we offer specialized Eiffel assignment help online to ensure you excel in your coursework and projects.

To demonstrate our expertise, let's delve into a couple of master-level programming questions along with their solutions:

Question 1: Implement a binary search tree in Eiffel and write a method to check if a given value exists in the tree.

Solution:

class BINARY_SEARCH_TREE

feature
    root: like {BINARY_TREE}
    ...
    
    -- Check if a value exists in the binary search tree
    has_value (a_value: INTEGER): BOOLEAN
        do
            Result := has_value_recursive (root, a_value)
        end

    has_value_recursive (a_node: like {BINARY_TREE}, a_value: INTEGER): BOOLEAN
        do
            if a_node = Void then
                Result := False
            elseif a_node.value = a_value then
                Result := True
            elseif a_value < a_node.value then
                Result := has_value_recursive (a_node.left, a_value)
            else
                Result := has_value_recursive (a_node.right, a_value)
            end
        end
    ...
end

Question 2: Write a program in Eiffel to implement the selection sort algorithm.

Solution:

class SORT_ALGORITHMS

feature
    selection_sort (array: ARRAY[INTEGER])
        local
            min_index: INTEGER
            i, j: INTEGER
        do
            from
                i := 1
            until
                i = array.count
            loop
                min_index := i
                from
                    j := i + 1
                until
                    j = array.count + 1
                loop
                    if array[j] < array[min_index] then
                        min_index := j
                    end
                    j := j + 1
                end
                swap (array, i, min_index)
                i := i + 1
            end
        end

    swap (array: ARRAY[INTEGER]; index1, index2: INTEGER)
        local
            temp: INTEGER
        do
            temp := array[index1]
            array[index1] := array[index2]
            array[index2] := temp
        end
end

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