What is the difference between `sealed class Te...

# android

[Anoop Gopalakrishnan]

What is the difference between

sealed class Test(val a: String) {
data class TestA(val a: String): Test(a)
data class TestB(val b: String): Test(b)
}

And

sealed class Test(val a: String) {
class TestA(a: String): Test(a)
class TestB(b: String): Test(b)
}