Question

Write a program that displays a histogram to show the number occurrences of each number in an input sequence. There should be a text filed to accept users input numbers and button to show the histogram. Enter your student number to generate your unique histogram. A student with 100013456 will give a histogram like the following one (note the text filed and button are not shown in the following histogram, BUT is required for the application) java code is needed

Occurrence Histogram 3.5 3 2.5 2 1.5 1 0.5 0 0 1 2 3 4 5 6 7 8 9

Answer 1

Code Image:

import javafx. application. import javafx.collections. * import javafx.event. import javafx.geometry. import javafx.scene. import javafx.scene.control. import javafx.scene.layout. import javafx.scene. paint. import javafx.scene. shape. * import javafx.scene. text. import javafx.stage. * ; // Implementation of UniqueHistogram class public class UniqueHistogram extends Application { * //Implenentation of start function @Override // Implenentation of start function public void start(Stage primaryStage) { VBox vbox = new VBox(); //call setSpacing function vbox.setSpacing(10); TextField textObject = new TextField(); // call setMinWidth function textObject.setMinWidth(280); //Create an object for Button class Button btobject = new Button(); // call setText function btobject.setText("Show Histogram"); //Implementation of setOnAction function btobject.setOnAction(new EventHandler < ActionEvent> () {

@Override public void handle(ActionEvent event) { String sequence = textObject.getText(); long requiredValue = Long.parseLong(sequence); //Declare numbers as type of integer array int[] numbers = new int[10]; //Declare k as type of integer //and assign int k = 0; //Iterate loop while(k<10) { numbers[k] = 0; //increment k by 1 k = k + 1; } //Iterate loop while (requiredValue > 0) { int j = (int) (requiredValue % 10); //increment numbers[j] by 1 numbers[j] = numbers [j]+1; // calculate requiredValue requiredValue = requiredValue / 10; } int maximum = numbers [0]; //Declare j as type of integer //and initialize with 1 int j = 1; //Iterate loop

(J<10) { // check numbers[j] is greater than maximum if (numbers[j] > maximum) { maximum = numbers[j]; } //increment j by 1 j = j + 1; } //call clear function vbox.getChildren().clear(); //Declare n as type of integer int n = 2 * maximum + 1; //Declare r as type of Rectangle array Rectangle[] r = new Rectangle[10]; //Declare vobj as type of Line Line vobj = new Line(); Line hobj = new Line(); vobj.setStartx(5); vObj.setStartY(5); VObj.setEndX(5); vObj.setEndy(250); vobj.setStroke(Color.SILVER); //call setStartx function hobj.setStartx(5); hobj.setStarty(250); hobj.setEndX(370); hobj.setEndy(250); hobj.setStroke (Color.SILVER);

Group gobject = new Group; //call add function gobject.getChildren().add(vobj); gobject.getChildren().add(hobi); Line[] lines = new Line[n]; int edgeValue = 240 / n; int ehl = 35; //Declare x as type of integer int x = 0; //Iterate loop while(x<n) { //call new Line() lines[x] = new Line(); lines[x].setStartx(5); lines[x].setStarty(250 - edgeValue * (x + 1)); lines[x].setEndX(370); lines[x].setEndY( 250 - edgeValue (x + 1)); // call stetstroke function lines[x].setStroke (Color.SILVER); gobject.getChildren().add(lines[x]); //increment x by 1 X = x + 1; } //Declare c as type of integer and assign int c = 0; *

* 1); //Iterate loop while(c<10) { //Call new Rectangle r[c] = new Rectangle(); r[c].setHeight(2 * numbers [c] edgeValue); r[c].setWidth(ehl); r[c].setX(5 + ((ehl * (c)))); //call sety function r[c].setY(250 - 2 * numbers [C] * edgeValue r[c].setFill(Color.BLUE); //call add function gObject.getChildren().add(r[c]); //increment c by 1 C = c + 1; } //create lables Label labelObjecto = new Label("0"); Label labelobject1 = new Label("1"); Label labelObject2 = new Label("2"); Label labelobject3 = new Label("3"); Label labelobject4 = new Label("4"); Label labelobject5 = new Label("5"); Label labelobject6 = new Label("6"); Label labelObject7 = new Label("7"); Label labelObject8 = new Label("8"); Label labelobject9 = new Label("9"); Label[] lbobjects = new Label[n]; Label tobject = new Label("Occurrence Histogram"); tobject. setFont(new Font(25)); tobject.setTextFill(Color.SILVER);

tobject.setPadding(new Insets(0, 70, 0, 100)); //create an object for HBox class HBox lower = new HBox(); lower.setMargin(labelObjecto, new Insets(8, 14, 8, 14)); lower.setMargin(labelObjecti, new Insets(8, 14, 8, 14)); lower.setMargin(labelObject2, new Insets(8, 14, 8, 14)); lower.setMargin(labelobject3, new Insets(8, 14, 8, 14)); lower.setMargin(labelObject4, new Insets(8, 14, 8, 14)); lower.setMargin(labelObject5, new Insets(8, 14, 8, 14)); lower.setMargin(labelObject6, new Insets(8, 14, 8, 14)); lower.setMargin(labelobject7, new Insets(8, 14, 8, 14)); lower.setMargin(labelObjects, new Insets(8, 14, 8, 14)); lower.setMargin(labelobject9, new Insets(8, 14, 8, 14)); Observablelist list = lower.getChildren(); //call addAll function list.addAll(labelObjecto, labelObjecti, labelobject2, labelobject3, labelObject4, labelobject5, labelObject6, labelObject7, labelObject8, labelObject9); Label[] lbobject = new Label(n + 1]; VBox lobject = new VBox(); //Declare z as type of integer //and assign int z = 0; //Iterate loop while(z<=n) { String str = + (.5 * z); lbobject[:] = new Label(str); //increment z by 1 z = 2 + 1; w

//call setMargin function 1object.setMargin(lbobject[n], new Insets (240 - n * edgeValue, 8, 9, 8)); //Declare f as type of integer //and assign n-1 int f = n - 1; //Iterate loop while(f >= 0) { //call setMargin function lobject.setMargin(lbobject[f], new Insets((edgeValue) / 2, 8, 9, 8)); //decrement f by 1 f = f - 1; } ObservableList Istobject1 = 10bject.getChildren(); //Declare i as type of integer //and assign n int m= n; //iterate loop while(m>=0) { Istobject1.add(lbobject[m]); //decrement m by 1 m = m - 1; } // Create object for VBox class VBox vobject = new VBox(); vobject.getChildren().add(gobject); vobject.getChildren().add(lower); //create mobject as type of HBox HBox mobject = new HBox(); mObject.getChildren().add(lobject); mobject.getChildren().add(vobject);

vbox.getchildren.add(tobject); vbox.getChildren() .add (mObject); } }); //Create object for HBox HBox horbox = new HBox(); //call setSpacing function horbox.setSpacing(15); //call add function horbox.getChildren().add(textObject); horbox.getChildren() .add(btobject); //create an object for StackPane class StackPane stobject = new StackPane(); stobject.getChildren().add(horbox); // Create object for VBox VBox grbox = new VBox(); //call add function grbox.getChildren().add(stObject); grbox.getChildren().add(vbox); Scene scene = new Scene (grbox, 450, 350); //call setTitle function primaryStage.setTitle("Histogram"); primaryStage.setScene (scene); // call show function primaryStage.show(); // Implementation of main function public static void main(String[] args) { //call launch function Launch(args); } }
Sample Output:

X Histogram 100013456 Show Histogram

Histogram 100013456 Show Histogram Occurrence Histogram 3. 5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 1 2 3 4 4 5 6 7 5 6 8 9

Code to Copy:

import javafx.application. * ;

import javafx.collections. * ;

import javafx.event. * ;

import javafx.geometry. * ;

import javafx.scene. * ;

import javafx.scene.control. * ;

import javafx.scene.layout. * ;

import javafx.scene.paint. * ;

import javafx.scene.shape. * ;

import javafx.scene.text. * ;

import javafx.stage. * ;

//Implementation of UniqueHistogram class

public class UniqueHistogram extends Application {

       //Implementation of start function

@Override

//Implenentation of start function

public void start(Stage primaryStage) {

    VBox vbox = new VBox();

    //call setSpacing function

    vbox.setSpacing(10);

    TextField textObject = new TextField();

    //call setMinWidth function

    textObject.setMinWidth(280);

    //Create an object for Button class

    Button btObject = new Button();

    //call setText function

    btObject.setText("Show Histogram");

    //Implementation of setOnAction function

    btObject.setOnAction(new EventHandler < ActionEvent > () {

       @Override

      public void handle(ActionEvent event) {

        String sequence = textObject.getText();

        long requiredValue = Long.parseLong(sequence);

        //Declare numbers as type of integer array

        int[] numbers = new int[10];

        //Declare k as type of integer

        //and assign 0

        int k = 0;

        //Iterate loop

        while(k<10)

        {

            numbers[k] = 0;

            //increment k by 1

             k = k + 1;

        }

        //Iterate loop

         while (requiredValue > 0) {

          int j = (int)(requiredValue % 10);

          //increment numbers[j] by 1

          numbers[j] = numbers[j]+1;

          //calculate requiredValue

          requiredValue = requiredValue / 10;

        }

        int maximum = numbers[0];

        //Declare j as type of integer

        //and initialize with 1

        int j = 1;

        //Iterate loop

        while(j<10)

        {

             //check numbers[j] is greater than maximum

             if (numbers[j] > maximum) {

                maximum = numbers[j];

              }

             //increment j by 1

             j = j + 1;

        }

        //call clear function

        vbox.getChildren().clear();

        //Declare n as type of integer

        int n = 2 * maximum + 1;

        //Declare r as type of Rectangle array

        Rectangle[] r = new Rectangle[10];

        //Declare vObj as type of Line

        Line vObj = new Line();

        Line hObj = new Line();

        vObj.setStartX(5);

        vObj.setStartY(5);

        vObj.setEndX(5);

        vObj.setEndY(250);

        vObj.setStroke(Color.SILVER);

        //call setStartx function

        hObj.setStartX(5);

        hObj.setStartY(250);

        hObj.setEndX(370);

        hObj.setEndY(250);

        hObj.setStroke(Color.SILVER);

        Group gObject = new Group();

        //call add function

        gObject.getChildren().add(vObj);

        gObject.getChildren().add(hObj);

        Line[] lines = new Line[n];

        int edgeValue = 240 / n;

        int ehl = 35;

        //Declare x as type of integer

        int x = 0;

        //Iterate loop

        while(x<n)

        {

             //call new Line()

             lines[x] = new Line();

            lines[x].setStartX(5);

            lines[x].setStartY(250 - edgeValue * (x + 1));

            lines[x].setEndX(370);

            lines[x].setEndY(250 - edgeValue * (x + 1));

            //call stetStroke function

            lines[x].setStroke(Color.SILVER);

            gObject.getChildren().add(lines[x]);

            //increment x by 1

            x = x + 1;

        }

        //Declare c as type of integer and assign 0

        int c = 0;

        //Iterate loop

        while(c<10)

        {

             //Call new Rectangle

             r[c] = new Rectangle();

            r[c].setHeight(2 * numbers[c] * edgeValue);

            r[c].setWidth(ehl);

            r[c].setX(5 + ((ehl * (c))));

            //call setY function

            r[c].setY(250 - 2 * numbers[c] * edgeValue - 1);

            r[c].setFill(Color.BLUE);

            //call add function

            gObject.getChildren().add(r[c]);

            //increment c by 1

             c = c + 1;

        }

        //create lables

        Label labelObject0 = new Label("0");

        Label labelObject1 = new Label("1");

        Label labelObject2 = new Label("2");

        Label labelObject3 = new Label("3");

        Label labelObject4 = new Label("4");

        Label labelObject5 = new Label("5");

        Label labelObject6 = new Label("6");

        Label labelObject7 = new Label("7");

        Label labelObject8 = new Label("8");

        Label labelObject9 = new Label("9");

        Label[] lbObjects = new Label[n];

        Label tObject = new Label("Occurrence Histogram");

        tObject.setFont(new Font(25));

        tObject.setTextFill(Color.SILVER);

        //call setPadding function

        tObject.setPadding(new Insets(0, 70, 0, 100));

        //create an object for HBox class

        HBox lower = new HBox();

        lower.setMargin(labelObject0, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject1, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject2, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject3, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject4, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject5, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject6, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject7, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject8, new Insets(8, 14, 8, 14));

        lower.setMargin(labelObject9, new Insets(8, 14, 8, 14));

        ObservableList list = lower.getChildren();

        //call addAll function

        list.addAll(labelObject0, labelObject1, labelObject2, labelObject3, labelObject4,

                    labelObject5, labelObject6, labelObject7, labelObject8, labelObject9);

        Label[] lbObject = new Label[n + 1];

        VBox lObject = new VBox();

        //Declare z as type of integer

        //and assign 0

        int z = 0;

        //Iterate loop

        while(z<=n)

        {

            String str = "" + (.5 * z);

            lbObject[z] = new Label(str);

             //increment z by 1

             z = z + 1;

        }

        //call setMargin function

        lObject.setMargin(lbObject[n], new Insets(240 - n * edgeValue, 8, 0, 8));

        //Declare f as type of integer

        //and assign n-1

        int f = n - 1;

        //Iterate loop

        while(f >= 0)

        {

             //call setMargin function

            lObject.setMargin(lbObject[f], new Insets((edgeValue) / 2, 8, 0, 8));

             //decrement f by 1

             f = f - 1;

        }

      

        ObservableList lstObject1 = lObject.getChildren();

        //Declare i as type of integer

        //and assign n

        int m = n;

        //iterate loop

        while(m>=0)

        {

            lstObject1.add(lbObject[m]);

             //decrement m by 1

             m = m - 1;

        }

        //Create object for VBox class

        VBox vObject = new VBox();

        vObject.getChildren().add(gObject);

        vObject.getChildren().add(lower);

        //create mobject as type of HBox

        HBox mObject = new HBox();

        mObject.getChildren().add(lObject);

        mObject.getChildren().add(vObject);

        //call add function

        vbox.getChildren().add(tObject);

        vbox.getChildren().add(mObject);

      }

    });

    //Create object for HBox

    HBox horbox = new HBox();

    //call setSpacing function

    horbox.setSpacing(15);

    //call add function

    horbox.getChildren().add(textObject);

    horbox.getChildren().add(btObject);

    //create an object for StackPane class

    StackPane stObject = new StackPane();

    stObject.getChildren().add(horbox);

    //Create object for VBox

    VBox grbox = new VBox();

    //call add function

    grbox.getChildren().add(stObject);

    grbox.getChildren().add(vbox);

    Scene scene = new Scene(grbox, 450, 350);

    //call setTitle function

    primaryStage.setTitle("Histogram");

    primaryStage.setScene(scene);

    //call show function

    primaryStage.show();

}

//Implementation of main function

public static void main(String[] args) {

       //call launch function

    launch(args);

}

}