Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
11th Edition
ISBN: 9780134671710
Author: Y. Daniel Liang
Publisher: PEARSON
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Textbook Question
Chapter 15.9, Problem 15.9.4CP
If the following code is inserted in line 57 in Listing 15.9, what is the output if the user presses the key for letter A? What is the output if the user presses the up arrow key?
circlePane.setOnKeyPressed(e →
System.out.println(“Key pressed ” + e.getCode()));
circlePane.setOnKeyTyped(e →
System.out.println(“Key typed ” + e.getCode()));
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Please include a gui for the encryption and decryption java code. Example of the gui in the photos
Java encryption and decryption code below
import java.util.*;
public class Main
{
//Inputs a one character string and returns True if the character is a letter (i.e. a to z or A to Z). Returns false if it is not. A function to check that the password or encryption key is valid.
public static boolean isALetter(char letter){
if( (letter >= 'a' && letter = 'A' && letter =-32767 && encryptKey
Write a switch statement that checks origLetter. If 'a' or 'A', print "Alpha". If 'b' or 'B', print "Beta". For any other character,
print "Unknown". Use fall-through as appropriate. End with newline.
439894.2564214.qx3zqy7
1 import java.util.Scanner;
2
3 public class ConvertToGreek {
4 public static void main (String [] args) {
Scanner scnr = new Scanner(System.in);
char origLetter;
5
6
7
8
O 00
9
10
AA
11
origletter = scnr.next().charAt(0);
/* Your solution goes here */
Write a switch statement that checks origLetter. If 'a' or 'A', print "Alpha". If 'b' or 'B',
print "Beta". For any other character, print "Unknown". Use fall-through as appropriate.
End with newline.
1 import java.util.Scanner;
2
3 public class ConvertToGreek {
public static void main (String [] args) {
Scanner scnr = new Scanner(System.in);
char origLetter;
4
7
8
origLetter
scnr.next().charAt(0);
9.
10
/* Your solution goes here
*/
11
}
13 }
12
Chapter 15 Solutions
Introduction to Java Programming and Data Structures: Brief Version (11th Global Edition)
Ch. 15.2 - Prob. 15.2.1CPCh. 15.2 - Prob. 15.2.2CPCh. 15.3 - Why must a handler be an instance of an...Ch. 15.3 - Explain how to register a handler object and how...Ch. 15.3 - Prob. 15.3.3CPCh. 15.3 - What is the registration method for a button to...Ch. 15.4 - Can an inner class be used in a class other than...Ch. 15.4 - Can the modifiers public, protected, private, and...Ch. 15.5 - Prob. 15.5.1CPCh. 15.5 - What is wrong in the following code?
Ch. 15.6 - Prob. 15.6.1CPCh. 15.6 - What is a functional interface? Why is a...Ch. 15.6 - Prob. 15.6.3CPCh. 15.8 - Prob. 15.8.1CPCh. 15.8 - Prob. 15.8.2CPCh. 15.9 - Prob. 15.9.1CPCh. 15.9 - Prob. 15.9.2CPCh. 15.9 - Prob. 15.9.3CPCh. 15.9 - If the following code is inserted in line 57 in...Ch. 15.10 - Prob. 15.10.1CPCh. 15.11 - Prob. 15.11.1CPCh. 15.11 - Prob. 15.11.2CPCh. 15.11 - Prob. 15.11.3CPCh. 15.11 - Prob. 15.11.4CPCh. 15.12 - How does the program make the ball appear to be...Ch. 15.12 - How does the code in Listing 15.17, BallPane.java,...Ch. 15.12 - What does the program do when the mouse is pressed...Ch. 15.12 - If line 32 in Listing 15.18, BounceBall.java, is...Ch. 15.12 - Prob. 15.12.5CPCh. 15.13 - Prob. 15.13.1CPCh. 15.13 - What would happen if map is replaced by scene in...Ch. 15.13 - Prob. 15.13.3CPCh. 15 - Prob. 15.1PECh. 15 - (Rotate a rectangle) Write a program that rotates...Ch. 15 - (Move the ball) Write a program that moves the...Ch. 15 - (Create a simple calculator) Write a program to...Ch. 15 - (Create an investment-value calculator) Write a...Ch. 15 - (Alternate two messages) Write a program to...Ch. 15 - (Change color using a mouse) Write a program that...Ch. 15 - (Display the mouse position) Write two programs,...Ch. 15 - (Draw lines using the arrow keys) Write a program...Ch. 15 - (Enter and display a string) Write a program that...Ch. 15 - (Move a circle using keys) Write a program that...Ch. 15 - Prob. 15.12PECh. 15 - (Geometry: inside a rectangle?) Write a program...Ch. 15 - Prob. 15.14PECh. 15 - Prob. 15.15PECh. 15 - (Two movable vertices and their distances) Write a...Ch. 15 - (Geometry: find the bounding rectangle) Write a...Ch. 15 - Prob. 15.18PECh. 15 - (Game: eyehand coordination) Write a program that...Ch. 15 - Prob. 15.20PECh. 15 - (Drag points) Draw a circle with three random...Ch. 15 - (Auto resize cylinder) Rewrite Programming...Ch. 15 - Prob. 15.23PECh. 15 - Prob. 15.24PECh. 15 - Prob. 15.25PECh. 15 - Prob. 15.26PECh. 15 - Prob. 15.27PECh. 15 - (Display a running fan) Write a program that...Ch. 15 - (Racing car) Write a program that simulates car...Ch. 15 - Prob. 15.30PECh. 15 - Prob. 15.31PECh. 15 - (Control a clock) Modify Listing 14.21,...Ch. 15 - (Game: bean-machine animation) Write a program...Ch. 15 - Prob. 15.34PECh. 15 - Prob. 15.35PECh. 15 - Prob. 15.36PE
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