Quadratic Equation Client

// Quadratic Equation Client
// A.C. Silvestri
// 4/29/17
// CSC-112 Intermediate Java Programming
// silvestri@stcc.edu
// HW 10

package client;

import java.io.*;
import java.util.*;
import java.net.*;
import javafx.application.Application;
import javafx.geometry.HPos;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
import javafx.scene.layout.FlowPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class QuadraticEquationClient extends Application {
    private final static String SERVER = "cs.stcc.edu";
    private final static int PORT = 5009;

    private TextField aCoeff = new TextField();
    private TextField bCoeff = new TextField();
    private TextField cCoeff = new TextField();
    private TextField firstRoot = new TextField();
    private TextField secondRoot = new TextField();
    private TextField status = new TextField();
    private Button calcBtn = new Button();

    @Override
    public void start(Stage primaryStage) throws IOException {
        Scene scene = new Scene(buildStagePane(), 580, 150);
        primaryStage.setResizable(false);
        primaryStage.setTitle("Quadratic Equation");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private VBox buildStagePane() {
        VBox vbox = new VBox();
        vbox.setSpacing(10);
        vbox.getChildren().addAll(buildInputBox(), buildOutputBox(), buildStatus());
        vbox.setAlignment(Pos.CENTER);
        return vbox;
    }

    private HBox buildInputBox() {
        HBox inputBox = new HBox();
        inputBox.setPadding(new Insets(10, 10, 0, 10));
        inputBox.setSpacing(10);
        aCoeff.setPromptText("Enter Coefficient A");
        bCoeff.setPromptText("Enter Coefficient B");
        cCoeff.setPromptText("Enter Coefficient C");
        inputBox.getChildren().addAll(new Label("a =  "), aCoeff, new Label("b = "), bCoeff, new Label("c = "), cCoeff);
        return inputBox;
    }

    private HBox buildOutputBox() {
        HBox outputBox = new HBox();
        outputBox.setAlignment(Pos.TOP_CENTER);
        outputBox.setPadding(new Insets(10, 10, 0, 10));
        outputBox.setSpacing(10);
        firstRoot.setEditable(false);
        firstRoot.setDisable(true);
        secondRoot.setEditable(false);
        secondRoot.setDisable(true);
        outputBox.getChildren().addAll(new Label("x1 = "), firstRoot, new Label("x2 = "), secondRoot, buildButton());
        return outputBox;
    }

    private Button buildButton() {
        calcBtn.setText("Calculate");
        calcBtn.setOnAction(e -> calculate());
        return calcBtn;
    }

    private HBox buildStatus() {
        HBox statusBox = new HBox();
        statusBox.setAlignment(Pos.TOP_CENTER);
        statusBox.setPadding(new Insets(10, 10, 0, 10));
        statusBox.setSpacing(10);
        status.setText("");
        status.setPrefWidth(400);
        status.setFont(new Font(10));
        statusBox.getChildren().addAll(new Label("Status:"), status);
        return statusBox;
    }

    private void calculate() {
        Socket client;
        PrintWriter output;
        Scanner input;
        try {
            status.setText("Creating Client \nSocket ");
            client = new Socket(SERVER, PORT);
            status.setText("Connected");
            input = new Scanner(client.getInputStream());
            output = new PrintWriter(client.getOutputStream());
            int inputValue;
            output.println(aCoeff.getText());
            output.flush();
            output.println(bCoeff.getText());
            output.flush();
            output.println(cCoeff.getText());
            output.flush();
            inputValue = Integer.parseInt(input.nextLine());
            if (inputValue == 2) {
                firstRoot.setText(input.nextLine());
                secondRoot.setText(input.nextLine());
            } else if (inputValue == 1) {
                firstRoot.setText(input.nextLine());
            } else if (inputValue == 0) {
                firstRoot.setText("No real roots");
                secondRoot.clear();
            } else
                firstRoot.setText(input.nextLine());;
        } catch (Exception ex) {
            status.setText("Error: " + ex.getMessage());
        }
    }

    public static void main(String args[]) throws IOException {
        launch(args);
    }

}