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Nataly [62]
3 years ago
6

Which of the following code correctly registers a handler with a button btOK?a. btOK.setOnAction(e -> System.out.println("Han

dle the event"));b. btOK.setOnAction((e) -> System.out.println("Handle the event"););c. btOK.setOnAction((ActionEvent e) -> System.out.println("Handle the event"));d. btOK.setOnAction(e -> {System.out.println("Handle the event");});
Computers and Technology
1 answer:
Bad White [126]3 years ago
4 0

Answer:

The correct answer is C:

btOK.setOnAction((ActionEvent e) -> System.out.println("Handle the event"));

Explanation:

The button produces an action once clicked. The setOnAction method indicates what will happen when the button is clicked. Action Event is a type of event that gets processed by EventHandler, which provides the action to be performed by clicking the button (printing out "Handle the event").

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Answer:

The answer is "True".

Explanation:

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In the main function, define five variables of type int, named: first, second, third, fourth, and total. Also in the main functi
fiasKO [112]

Answer:

  1. import java.util.Scanner;
  2. public class num8 {
  3.    public static void main(String[] args) {
  4.    int first, second, third, fourth,total;
  5.    double decimalOne, decimalTwo, decimalTotal;
  6.    }
  7.    public static void getData(int first, int second, int third, int fourth, double decimalOne, double decimalTwo){
  8.        System.out.println("Enter the Values");
  9.        Scanner in = new Scanner(System.in);
  10.        first=in.nextInt();
  11.        second=in.nextInt();
  12.        third=in.nextInt();
  13.        fourth=in.nextInt();
  14.        decimalOne = in.nextDouble();
  15.        decimalTwo = in.nextDouble();
  16.    }
  17.    public static int computeTotal(int first, int second, int third){
  18.        return first+second+third;
  19.    }
  20.    public static int computeTotal(int first, int second, int third, int fourth){
  21.        return first+second+third+fourth;
  22.    }
  23.   public static double computeTotal(double decimalOne, double decimalTwo){
  24.        return decimalOne+decimalTwo;
  25.    }
  26.    public static void printAll( int first, int second, int third){
  27.        System.out.println("Number one, two and three are: "+first+" "+second+" "+third);
  28.    }
  29.    public static void printAll( int first, int second, int third, int fourth){
  30.        System.out.println("Number one, two and three and four are: "+first+" "+second+
  31.                " "+third+" "+fourth);
  32.    }
  33.   public static void printAll( int first, int second, int third, int fourth, int fifth){
  34.        System.out.println("Number one, two and three and four are: "+first+" "+second+
  35.                " "+third+" "+fourth+" "+fifth);
  36.    }
  37.    public static void printAll( double first, double second, double third){
  38.        System.out.println("Number one, two and three and four are: "+first+" "+second+
  39.                " "+third);
  40.    }
  41. }

Explanation:

This solution is provided in Java:

All the variable declarations are done in the main method (lines 3-6)

Eight methods as specified in the question are created (Lines 7, 17, 20, 23, 26, 29, 33 and 37).

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