Kotlin override

open class Shape {
    open val vertexCount: Int = 0
    open fun draw() { /*...*/ }
    fun fill() { /*...*/ }
}

class Rectangle() : Shape() {
    override fun draw() { /*...*/ }		// overrides method
    override val vertexCount = 4		// overrides property, can be set later
}

class Losange(override val vertexCount: Int = 4) : Shape 
// Always has 4 vertices, can't be set later

Similar codes

1 vote149 views1 answer
Android disable landscape mode
Kotlin
2 votes132 views1 answer
Open fragment from activity kotlin
Kotlin
0 vote142 views2 answers
Get map by index kotlin
Kotlin
2 votes142 views2 answers
How to throw exception in kotlin
Kotlin
3 votes151 views1 answer
Kotlin read input as int
Kotlin
0 vote148 views1 answer
Mute the phone kotlin
Kotlin
0 vote150 views1 answer
Kotlin fold
Kotlin
0 vote156 views1 answer
Android prevent screenshot in activity
Kotlin
0 vote117 views1 answer
Viewpager2 android dependency
Kotlin
19 votes254 views2 answers
Kotlin rand
Kotlin