Incognito4pda

// Проверяют так
if (typeof variable !== 'undefined') {
    // code
}

// Можно и так, ибо все глобалы лежат в window
if (window.variable !== void 0) {
    // code
}

Platform.runLater((() -> someLabel.setText("Hello"));

public class Example extends Application {
    ...

    btn.setOnAction(act -> {
        Service<Void> service = new Service<Void>() {
            @Override
            protected Task<Void> createTask() {
                return new Task<Void>() {
                    @Override
                    protected Void call() throws Exception {
                        // Долгий код
                        return null;
                    }
                };
            }
        };
        service.start();
    });
}

s = '0.00009011'
first, second = s.split('.')
result = first + '.' + second[2:-2]
print(result)

float_number = 0.0000550034
print(f"{float_number:.nf}")

import numpy as np
number = 0.00009011
first, second = str(np.format_float_positional(number,trim='-')).split('.')
result = first + '.' + second[2:-2]
print(result)
здесь в отличии от первого случая тип наших float но проблема все равно решается.

private void runCmdWithProgress(String... args) throws IOException {
        Process proc = Runtime.getRuntime().exec(args);
        InputStream inputStream = proc.getErrorStream();
        InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
        String s = null;

        while ((s = bufferedReader.readLine()) != null) {
                Double progress = Double.parseDouble(s.split("%")[0]) / 100;
                Platform.runLater(() -> tab_adb_progressbar.setProgress(progress));
        }
        try {
            proc.waitFor();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

new Thread(() -> {
	                        try {
	                            runCmdWithProgress(commands);
	                            Platform.runLater(() ->  showDialogInformation(positive);
	                        } catch (IOException e) {
	                            e.printStackTrace();
	                        }
	                    }).start();

SELECT * FROM `название вашей таблици` WHERE `поле сортировки` BETWEEN '2019-01-01 (з какого)' AND '2019-04-30 (по какое число)'

var a = "0.000000009000000000";
a = a.replace(/0*$/,"");

byte[] arBytes;
...
ImageIcon icon = new ImageIcon(arBytes);

BufferedImage image = ImageIO.read(new ByteArrayInputStream(arBytes));

int[] arInts = {0,1,2,3,4,5,6,7,8,9};
...
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = img.createGraphics();
g2d.setPaint(Color.red);
g2d.setFont(new Font("Serif", Font.BOLD, 18));
FontMetrics fm = g2d.getFontMetrics();
int x = 5;
for(int i : arInts){
    String s = (new Integer(i)).toString();    
    g2d.drawString(s, x, 5);
    x += fm.stringWidth(s) + 5;
}
g2d.dispose();