Can anyone answer this question asap, please? I need those to be done with JavaF
ID: 3756812 • Letter: C
Question
Can anyone answer this question asap, please? I need those to be done with JavaFX library only, thank you!
Homework Topics: When you have an activity that requires the behavior of threading, you have a choice of which type of threading you want to use. This homework provides practice for three different types of threading behaviors: Threads/Runnable, and the Timer classes from avax.swing and java.util packages. This homework also includes: Changing label fonts via HTML or Java classes, File I/O, Color class, JProgressBar, anonymous inner classes, Date class, SimpleDateFormat class, Thread's sleep0 method and possibly arrays. Problem Statement: Duplicate the following display and behavior using the three different threading techniques specified in this assignment. When the program is started it presents (1) the date/time in format shown, (2) a rainbow of colors (ROYGBIV), and (3) at least two progress bars at the bottom of the screen. The three different behaviors are controlled by three different threading controls as specified for each. Timer Fun File Help Mon 13 Aug 2018 08:47:01 Words progress: Opening Words.. Unabridged progress: Opening Unabridged.Explanation / Answer
package demos.sevenguis.timer
import kotlinfx.builders.*
import kotlinfx.properties.*
import kotlinfx.bindings.*
import kotlinfx.abbreviations.*
import javafx.application.Application
import javafx.stage.Stage
import javafx.beans.property.SimpleDoubleProperty
import javafx.animation.Timeline
import javafx.animation.KeyFrame
import javafx.util.Duration
import javafx.event.ActionEvent
import javafx.event.EventHandler
import javafx.animation.Animation
import javafx.beans.binding.Bindings
import java.util.concurrent.Callable
fun main(args: Array<String>) {
Application.launch(javaClass<Timer>())
}
class Timer : Application() {
override fun start(stage: Stage?) {
val progress = ProgressBar()
val numericProgress = Label()
val slider = Slider(min=1.0, max=400.0, value=200.0)
val reset = Button("Reset")
val elapsed = SimpleDoubleProperty(0.0)
progress.progressp bind (elapsed / slider.valuep)
// TODO: closure instead of callable
numericProgress.textp bind Bindings.createStringBinding(object : Callable<String> { override fun call(): String? =
formatElapsed(elapsed.v)
}, elapsed)
reset.setOnAction { elapsed.v = 0.0 }
// TODO: Why can't I use closure syntax here?
val timeline = Timeline(KeyFrame(Duration.millis(100.0), object : EventHandler<ActionEvent> {
override fun handle(event: ActionEvent?) {
if (elapsed.v < slider.getValue()) elapsed.set(elapsed.v + 1)
}
}))
timeline.setCycleCount(Animation.INDEFINITE) // TODO: Why not Timeline.INDEFINITE?
timeline.play()
Stage(stage, title = "Timer") {
scene = Scene {
root = VBox(spacing=10.0, padding=Insets(10.0)) {
+ HBox(10.0) { + Label("Elapsed Time: ") + progress }
+ numericProgress
+ HBox(10.0) { + Label("Duration: ") + slider }
+ reset
}
}
}.show()
}
}
fun formatElapsed(elapsed: Double): String {
val seconds = Math.floor(elapsed / 10.0)
val dezipart = elapsed % 10
return "${seconds.toInt()}.${dezipart.toInt()}s"
}