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completed java mooc ii
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@awstn
awstn committed Jan 24, 2024
1 parent 4a09d9c commit b5af80e
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Showing 10 changed files with 760 additions and 107 deletions.
137 changes: 32 additions & 105 deletions ...4-Part14_03.SavingsCalculator/src/main/java/application/SavingsCalculatorApplication.java
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Original file line number Diff line number Diff line change
Expand Up @@ -28,68 +28,75 @@ public static void main(String[] args) {

@Override
public void start(Stage window){
BorderPane layout = new BorderPane();

VBox topHeading = new VBox();
topHeading.setPadding(new Insets(25));
BorderPane layout = new BorderPane();

BorderPane monthlySavings = new BorderPane();
//monthly sum slider
Slider monthlySlider = new Slider(25, 250 ,4);
monthlySlider.setShowTickMarks(true);
monthlySlider.setShowTickLabels(true);
Label sliderValue = new Label(String.valueOf(monthlySlider.getValue()));
monthlySlider.setSnapToTicks(true);

BorderPane interestRate = new BorderPane();
//interest slider
Slider interestSlider = new Slider(0, 10, 0);
interestSlider.setShowTickMarks(false);
interestSlider.setShowTickLabels(true);
interestSlider.setSnapToTicks(true);

//slider labels
Label sliderValue = new Label(String.valueOf(monthlySlider.getValue()));
Label interestValue = new Label(String.valueOf(interestSlider.getValue()));


//setting borderPane object for monthly sum slider
BorderPane monthlySavings = new BorderPane();
monthlySavings.setLeft(new Label("Monthly savings"));
monthlySavings.setCenter(monthlySlider);
monthlySavings.setRight(sliderValue);

//setting borderPane object for interest slider
BorderPane interestRate = new BorderPane();
interestRate.setLeft(new Label("Yearly interest rate"));
interestRate.setCenter(interestSlider);
interestRate.setRight(interestValue);


//creating VBox object and adding the borderPane objects (interestRate and monthlySavings) to it
VBox topHeading = new VBox();
topHeading.setPadding(new Insets(25));
topHeading.getChildren().addAll(monthlySavings, interestRate);


//setting numberAxis objects for LineChart
NumberAxis xAxis = new NumberAxis(0, 30, 1);
NumberAxis yAxis = new NumberAxis();


//setting up LineChart and two XYCharts.Series objects that will display the savings and interest on the LineChart.
LineChart<Number, Number> lineChart = new LineChart<>(xAxis, yAxis);
lineChart.setAnimated(false);
lineChart.setLegendVisible(false);
XYChart.Series savingsChart = new XYChart.Series();
XYChart.Series interestChart = new XYChart.Series();



//setting up title of LineChart and adding the XYCharts to the lineChart
lineChart.setTitle("Savings Counter");

lineChart.getData().addAll(savingsChart, interestChart);


DecimalFormat df = new DecimalFormat("#.00");


//Adding a event listener to the monthly slider where it will update savingsChart according to the new value
monthlySlider.valueProperty().addListener((observable, oldValue, newValue) -> {
sliderValue.setText(String.format("%.2f", newValue.doubleValue()));

sliderValue.setText(String.format("%.2f", newValue.doubleValue()));
updateChart(monthlySlider.getValue(), interestSlider.getValue(), savingsChart, interestChart);

});

//Adding a event listener to the interest slider where it will update savingsChart according to the new value
interestSlider.valueProperty().addListener((observable, oldValue, newValue) -> {
interestValue.setText(String.format("%.2f", newValue.doubleValue()));

updateChart(monthlySlider.getValue(),interestSlider.getValue(), savingsChart, interestChart);

});

//adding this so the graph will display the values on start of the program
updateChart(monthlySlider.getValue(),interestSlider.getValue(), savingsChart, interestChart);


layout.setCenter(lineChart);
layout.setTop(topHeading);

Expand All @@ -99,9 +106,12 @@ public void start(Stage window){
}

public void updateChart(double savings, double interest, XYChart.Series savingsSeries, XYChart.Series withInterestSeries){

//clears the chart
savingsSeries.getData().clear();
withInterestSeries.getData().clear();

//updates it with new values
savingsSeries.getData().add(new XYChart.Data(0, 0));
withInterestSeries.getData().add(new XYChart.Data(0, 0));

Expand All @@ -128,151 +138,83 @@ public void start(Stage ikkuna) {
BorderPane display = new BorderPane();
Slider monthlySum = new Slider();
monthlySum.setMin(25);
monthlySum.setMax(250);
monthlySum.setSnapToTicks(true);
monthlySum.setBlockIncrement(500);
monthlySum.setShowTickLabels(true);
monthlySum.setShowTickMarks(true);
Slider interestRate = new Slider();
interestRate.setMin(0);
interestRate.setMax(10);
interestRate.setMinorTickCount(10);
interestRate.setShowTickLabels(true);
interestRate.setShowTickMarks(true);
Label savingsText = new Label("25");
Label interestRateText = new Label("0");
BorderPane monthlySumDisplay = new BorderPane();
monthlySumDisplay.setLeft(new Label("Monthly savings"));
monthlySumDisplay.setCenter(monthlySum);
monthlySumDisplay.setRight(savingsText);
monthlySumDisplay.setPadding(new Insets(10));
BorderPane interestRateDisplay = new BorderPane();
interestRateDisplay.setLeft(new Label("Yearly interest rate"));
interestRateDisplay.setCenter(interestRate);
interestRateDisplay.setRight(interestRateText);
interestRateDisplay.setPadding(new Insets(10));
VBox sliderDisplay = new VBox();
sliderDisplay.getChildren().add(monthlySumDisplay);
sliderDisplay.getChildren().add(interestRateDisplay);
sliderDisplay.setPadding(new Insets(10));
sliderDisplay.setSpacing(10);
display.setTop(sliderDisplay);
NumberAxis xAxis = new NumberAxis(0, 30, 1);
NumberAxis yAxis = new NumberAxis();
LineChart<Number, Number> savingsLineChart = new LineChart<>(xAxis, yAxis);
savingsLineChart.setAnimated(false);
savingsLineChart.setLegendVisible(false);
savingsLineChart.setTitle("Savings calculator");
display.setCenter(savingsLineChart);
XYChart.Series savings = new XYChart.Series();
XYChart.Series savingsWithInterest = new XYChart.Series();
savingsLineChart.getData().add(savings);
savingsLineChart.getData().add(savingsWithInterest);
monthlySum.setOnMouseReleased(e -> {
savingsText.setText("" + monthlySum.getValue());
updateChart(monthlySum.getValue(), interestRate.getValue(), savings, savingsWithInterest);
});
interestRate.setOnMouseReleased(e -> {
String interestString = "" + interestRate.getValue();
if (interestString.length() > 4) {
interestString = interestString.substring(0, 4);
}
interestRateText.setText(interestString);
updateChart(monthlySum.getValue(), interestRate.getValue(), savings, savingsWithInterest);
});
Scene view = new Scene(display, 640, 480);
ikkuna.setScene(view);
ikkuna.show();
}
Expand All @@ -282,33 +224,18 @@ public void start(Stage ikkuna) {
private void updateChart(double monthlySavings, double interestRate, XYChart.Series savings, XYChart.Series savingsWithInterest) {
savings.getData().clear();
savingsWithInterest.getData().clear();
savings.getData().add(new XYChart.Data(0, 0));
savingsWithInterest.getData().add(new XYChart.Data(0, 0));
double previous = 0;
for (int i = 1; i <= 30; i++) {
savings.getData().add(new XYChart.Data(i, i * monthlySavings * 12));
previous += monthlySavings * 12;
previous *= (1 + interestRate / 100.0);
savingsWithInterest.getData().add(new XYChart.Data(i, previous));
}
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34 changes: 34 additions & 0 deletions part14-Part14_09.Asteroids/src/main/java/asteroids/Asteroid.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
package asteroids;

import java.util.Random;
import javafx.scene.shape.Polygon;



public class Asteroid extends Character{

private double rotationalMovement;

public Asteroid(int x, int y){
super(new PolygonFactory().createPolygon(), x, y);

Random rnd = new Random();

super.getCharacter().setRotate(rnd.nextInt(360));

int accelerationAmount = 1 + rnd.nextInt(10);
for (int i = 0; i < accelerationAmount; i++){
accelerate();
}

this.rotationalMovement = 0.5 - rnd.nextDouble();
}

@Override
public void move(){
super.move();
super.getCharacter().setRotate(super.getCharacter().getRotate() + rotationalMovement);
}


}
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