Property in Swift - Computed property | Property Observers (WillSet & DidSet)

   Computed property -  Computed properties are part of a property type in Swift.  Stored properties are the most common which save and return a stored value  Computed properties calculate (rather than store) a value. A computed property provides a getter and an optional setter to indirectly access other properties and values. Computed property in swift is an interesting topic as you can write code inside a property in swift. Computed properties are provided by classes, structures, and enumerations but stored properties are provided only by classes and structures. This computed property swift tutorial has some tips on how to use the computed property in the right way and avoid the common mistakes that swift programming beginners do while computed property. Example :- Computed property A Calculate Simple Intrest struct CalculateLoan {      var amount : Int      var rate : Int      var years : Int      var simpleInterest: Int {          get {              return ( amount * rate
0

Sum of left & Right diagonal of the matrix In Swift

Sum of left & Right diagonal of the matrix In Swift

Sum of left & Right diagonal of the matrix In Swift



  import Foundation


  class SumDiagonal{

    

    // Left Sum Diagonal

    func sumOfLeftDiagonal(mxt: [[Int]], size: Int) -> Int{

        var sum = 0

        for x in 0..<size{

            for y in 0..<size{

                if x == y{

                    sum += mxt[x][y]

                }

            }

        }

        return sum

    }

    

    //MARK: - Right Sum Diagonal

    func sumOfRightDiagonal(mxt: [[Int]], size: Int) -> Int{

        var sum = 0

        for x in 0..<size{

            for y in 0..<size{

                if (x+y) == size - 1{

                    sum += mxt[x][y]

                }

            }

        }

        return sum

    }

 }


 let matrix = [[3, 5, 9, 1], [3, 5, 7, 3], [3, 2, 6, 1], [4, 5, 2, 6]]


 //MARK: - Print Matrix Format 4X4


 for x in 0..<4{

    for y in 0..<4{

        print(matrix[x][y], terminator: " ")

    }

    print()

 }


 //MARK: - Output === >


 /*

 3 5 9 1

 3 5 7 3

 3 2 6 1

 4 5 2 6

 */


 //MARK: - Class object

 let objSumDiagonal = SumDiagonal()


 //MARK: - Now Sum of Left Diagonal

 print("Sum of Left Diagonal == >>    \(objSumDiagonal.sumOfLeftDiagonal(mxt: matrix,   size:  4))")


 //MARK: - Output === >

 //Sum of Left Diagonal == >>    20


 //MARK: - Now Sum of Right Diagonal

 print("Sum of Right Diagonal == >>    \(objSumDiagonal.sumOfRightDiagonal(mxt: matrix,   size: 4))")


 //MARK: - Output === >

 //Sum of Right Diagonal == >>    14






Comments

Post a Comment