compose-jb/templates/desktop-template/src/main/kotlin/main.kt

import androidx.compose.material.Text
import androidx.compose.material.Button
import androidx.compose.material.MaterialTheme
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.window.Window
import androidx.compose.ui.window.application

fun main() = application {
    Window(onCloseRequest = ::exitApplication) {
        var text by remember { mutableStateOf("Hello, World!") }

        MaterialTheme {
            Button(onClick = {
                text = "Hello, Desktop!"
            }) {
                Text(text)
            }
        }
    }
}