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Main.java
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Main.java
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package sample;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Orientation;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.FlowPane;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import javax.swing.*;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author Cerberus
*/
public class Main extends Application {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
Label labelTitle = new Label();
labelTitle.setText("Peso");
labelTitle.setFont(new Font("Segoe UI", 20));
Label labelKG = new Label();
labelKG.setFont(new Font("Segoe UI", 20));
labelKG.setText("Kilogramos");
Label labelLB = new Label();
labelLB.setText("Libras");
labelLB.setFont(new Font("Segoe UI", 20));
Button btnGuardar = new Button();
btnGuardar.setText("Guardar");
btnGuardar.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
String nameFile = "log.txt";
File file = new File("log.txt");
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
}
try {
Date ahora = new Date();
SimpleDateFormat formateador = new SimpleDateFormat("HH:mm:ss dd/MM/yyyy");
String aux = "";
String oldData = "";
FileReader hoja = new FileReader(file);
BufferedReader lee = new BufferedReader(hoja);
while ((aux = lee.readLine()) != null) {
oldData += aux + "\n";
}
lee.close();
FileWriter archivo = new FileWriter(file);
archivo.append(oldData);
archivo.append("Fecha: " + formateador.format(ahora));
archivo.append(" | KG: " + labelKG.getText() + " , LB: " + labelLB.getText());
archivo.close();
} catch (IOException ex) {
System.out.println("Hubo un error");
}
}
}
);
Slider slKG = new Slider();
slKG.setMin(0);
slKG.setMax(200);
slKG.setValue(0);
slKG.valueProperty().addListener(new ChangeListener<Number>() {
@Override
public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
labelKG.setText((float) slKG.getValue() + " kg");
labelLB.setText((float) (slKG.getValue() * 2.20462) + " lb");
}
}
);
Slider slLB = new Slider();
slLB.setMin(0);
slLB.setMax(500);
slLB.setValue(0);
slLB.valueProperty().addListener(new ChangeListener<Number>() {
@Override
public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue
) {
labelLB.setText((float) slLB.getValue() + " lb");
labelKG.setText((float) (slLB.getValue() * 0.453592) + " kg");
}
}
);
TextField textKG = new TextField();
textKG.setOnKeyPressed(new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent event
) {
if (event.getCode() == KeyCode.ENTER) {
if (textKG.getText().matches("[a-zA-Z]+")
|| textKG.getText().matches("[0-9]+[a-zA-Z]+")
|| textKG.getText().matches("[a-zA-Z]+[0-9]+")) {
JOptionPane.showMessageDialog(null, "Solo se admiten digitos.");
textKG.setText("");
} else {
slKG.setValue(Double.parseDouble(textKG.getText()));
labelKG.setText(textKG.getText() + " kg");
}
}
}
}
);
TextField textLB = new TextField();
textLB.setOnKeyPressed(
new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent event
) {
if (event.getCode() == KeyCode.ENTER) {
if (textLB.getText().matches("[a-zA-Z]+")
|| textLB.getText().matches("[0-9]+[a-zA-Z]+")
|| textLB.getText().matches("[a-zA-Z]+[0-9]+")) {
JOptionPane.showMessageDialog(null, "Solo se admiten digitos.");
textLB.setText("");
} else {
slLB.setValue(Double.parseDouble(textLB.getText()));
labelLB.setText(textLB.getText() + " lb");
}
}
}
}
);
Button verResultados = new Button();
verResultados.setText("Ver resultados anteriores");
verResultados.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
String nameFile = "log.txt";
File file = new File("log.txt");
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
}
String aux = "";
String oldData = "";
try {
FileReader hoja = new FileReader(file);
BufferedReader lee = new BufferedReader(hoja);
while ((aux = lee.readLine()) != null) {
oldData += aux + "\n";
}
lee.close();
JOptionPane.showMessageDialog(null, oldData);
} catch (IOException io) {
JOptionPane.showConfirmDialog(null, "No se encontro el archivo");
}
}
});
FlowPane flow = new FlowPane(Orientation.VERTICAL);
flow.setVgap(20);
flow.setPadding(
new Insets(30));
flow.getChildren().addAll(labelTitle, labelKG, slKG, textKG, labelLB,
slLB, textLB, btnGuardar, verResultados);
Scene scene = new Scene(flow, 200, 500);
primaryStage.setTitle("Bascula");
primaryStage.setScene(scene);
primaryStage.show();
}
}