help me in this code kOTLIN !!!!

Question

You decide to make the Component class abstract, since you are not going to create objects of that type.
You also add a show() function to it that the derived classes need to override.
For a Button, the show() function should output: "Showing a Button", while for an Image it should output: "Showing an Image".

abstract class Component(width: Int, height: Int) {
protected var width = width
protected var height = height
abstract fun show()
}
class Button(width: Int, height: Int): Component(width, height) {
private var name: String = "Button"
fun tap() {
println(name + " was tapped")
}

}
class Image(width: Int, height: Int): Component(width, height) {
fun draw() {
println(width.toString()+"x"+height.toString())
}

}
fun main(args: Array<String>) {
val b1 = Button(200, 50)
b1.tap()
b1.show()

val img = Image(300, 500)
img.draw()
img.show()
}

help me in this code

Answer 1

This is correct answer

abstract class Component(width: Int, height: Int) {
protected var width = width
protected var height = height
abstract fun show()
}
class Button(width: Int, height: Int): Component(width, height) {
private var name: String = "Button"
fun tap() {
println(name + " was tapped")
}
override fun show() {
println("Showing a Button")
}

}
class Image(width: Int, height: Int): Component(width, height) {
fun draw() {
println(width.toString()+"x"+height.toString())
}
override fun show() {
println("Showing an Image")
}
}
fun main(args: Array<String>) {
val b1 = Button(200, 50)
b1.tap()
b1.show()

val img = Image(300, 500)
img.draw()
img.show()
}

Answer 2

when you implement an abstract class you have to override its methods with the keyword override.

class Button(width: Int, height: Int): Component(width, height) {
private var name: String = "Button"

//here
override fun show() {
println("Showing a Button")
}

}
class Image(width: Int, height: Int): Component(width, height) {
fun draw() {
println(width.toString()+"x"+height.toString())
}

//here
override fun show() {
println(" Showing an Image")
}
}