Question

Create an application that can be used to practice adding, subtracting, multiplying, and dividing numbers. The application should display a math problem on the screen and then allow the student to enter the answer and also verify that the answer is correct. The application should give the student as many chances as necessary to answer the problem correctly. The math problems should use random integers from 1 through 20, inclusive. The subtraction problems should never ask the student to subtract a larger number from a smaller one. The division problems should never ask the student to divide a smaller number by a larger number. Also, the answer to the division problems should always result in a whole number. The application should keep track of the number of correct and incorrect responses made by the student. The interface should include a button that allows the user to reset the counters for a different student.

Answer 1

//Code in java

import javafx.application.Application;
import java.util.*;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.stage.Stage;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.event.EventHandler;
import javafx.event.ActionEvent;
public class MyApplication extends Application{
   public void start(Stage stage) {
  
        Random R= new Random();
        GridPane root = new GridPane();
        int a,b;  
        Label a1=new Label("First Number ");
        Label a2 = new Label("Second Number ");
        Label a3 = new Label("Operation ");
        Label a4 = new Label("Enter Your answer ");
        Label a5 = new Label("Result after checking ");
        TextField tf1=new TextField();
        TextField tf2=new TextField();
        TextField tf3=new TextField();
        TextField tf4=new TextField();
        TextField tf5=new TextField();
        tf1.setEditable(false);
        tf2.setEditable(false);
            tf3.setEditable(false);
        tf5.setEditable(false);
            Button b1 = new Button("Check Result");  
        Button b2 = new Button("CLEAR");
        a = R.nextInt(20);
            b = R.nextInt(20);
            tf1.setText( Integer.toString(a));
            tf2.setText( Integer.toString(b));
            if(b > 0 && a%b == 0 ){
                 tf3.setText("Devision");
        }else if(a > b) {
                 tf3.setText("Subtraction");
        }else if(b%2 == 0){
                 tf3.setText("Addition");
        }else{
                 tf3.setText("Multiplication");
        }
            b1.setOnAction(e ->{
       String st = tf4.getText();
       String s = tf3.getText();
       int an,ans= Integer.parseInt(st);
                if(s.compareTo("Devision") == 0){
           an=a/b;
       }else if(s.compareTo("Subtraction") == 0 ){
           an = a-b;
       }else if(s.compareTo("Addition")==0){
           an = a+b;
       }else
           an = a*b;
       if(an == ans ){
           tf5.setText("Right answer ");
       }else
           tf5.setText("Wrong answer Correct answer is "+an);
            });
        root.addRow(0, a1, tf1);
        root.addRow(1, a2, tf2);
        root.addRow(2, a3,tf3);
        root.addRow(3, a4,tf4);
        root.addRow(5, b1 ,b2);
        root.addRow(6, a5,tf5);
        b2.setOnAction(new EventHandler() {
            public void handle(ActionEvent event) {
                tf1.clear();
                tf2.clear();
                tf3.clear();
                tf4.clear();
            }
            });
     
        Scene scene=new Scene(root,350,200);
            stage.setScene(scene);
        stage.setTitle("Text Field Example");
            stage.show();
   }
}

//Screenshot of output terminal