4/27/2021 assignment: Write a program to perform addition, subtraction, multiplication, and division. The text in TextField can be retrieved by string=textField.getText(), and be set as textField.set Text(string). String and numerical value can be translated by Double.parseDouble(string), and String.valueOf(doubleValue). Simple calculator Number 1: 4.5 Number 2: 3.4 Result : 7.9 Add subtract Multiply Divide

4/27/2021 assignment: Write a program to perform addition, subtraction, multiplication, and division. The text in TextField can be retrieved by string=textField.getText(), and be set as textField.set Text(string). String and numerical value can be translated by Double.parseDouble(string), and String.valueOf(doubleValue). Simple calculator Number 1: 4.5 Number 2: 3.4 Result : 7.9 Add subtract Multiply Divide

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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def sparechange(quarters, dimes, nickels, pennies): spareAMT = 25 * quarters + 10 * dimes + 5 * nickels + 1 * pennies print("The total value of your change is $%.2f "%(spareAMT/100)) uses import.sys and sys.argv[ ] to run code
#1 A) Write a program to print all alphabets from A to Z. You will be using the JSR putchar command. B) Write a program to print the hexadecimal equivalents of all alphabets from A to Z. You will be using the JSR out2hex command in the previous question instead of JSR putchar.
PYTHON3 Complete the given function, encrypt_text that encrypts the variable text using the provided key by applying a modified version of Caesar’s Cipher with the following rules: The key will contain a word made up of the letters ‘u’ and ‘d’. The cipher will use the key to determine the direction of the shift, with a ‘u’ indicating that the character must be shifted upwards while a ‘d’ indicating a downward shift. The number of characters in the key will determine the number of positions to shift. The given text variable will only contain characters from the ASCII table with values between 32 and 126. If the key is invalid (empty string, contains characters other than u and d) or the text is invalid (empty string), no encryption occurs and the function returns the original text. If the text has more characters than the key, the key will loop through again to accommodate the additional text characters. An iterative approach should be used to solve this problem. Brute force…
Assume that nextWord is a String variable that has been given a String value consisting entirely of letters. Write some Java code that outputs the message "First half of the alphabet", provided nextWord precedes "N" in alphabetic ordering. If nextWord does not precede "N" in alphabetic ordering, the code should output "Second half of the alphabet". (Note that "N" uses double quotes to produce a String value, as opposed to using single quotes to produce a char value.)
do some changes in code and make it unique #include <stdio.h>#include <stdlib.h>#include<string.h>//declaring functionsvoid firstFit(int [], int , int [],int );void bestFit(int [], int , int [],int );void worstFit(int [], int , int [],int );//starting programint main() {//declare partitions and processint partitions [] = {110, 450, 100, 250, 500};int processes [] = {212, 417, 112, 426};//getting their sizesint size_partitions = sizeof(partitions )/sizeof(partitions [0]);int size_processes = sizeof(processes )/sizeof(processes [0]);printf("Partitions size: ") ;for (int i=0; i<size_partitions; i++){printf("%d\t" ,partitions[i] );}//index partprintf("\nPartitions index: " );for (int i=0; i<size_partitions; i++){printf("%d\t" ,(i+1)) ;}printf( "\n" );// calling functionsfirstFit(partitions , size_partitions, processes , size_processes);bestFit(partitions , size_partitions, processes , size_processes);worstFit(partitions , size_partitions, processes ,…
Trace the following Code and then print the output. msg db 'hello world$' newline db 10,13,'$' buffer db 10 dup mov ah,9 mov dx,offset msg int 21h ;new line mov ah,9 mov dx, offset newline int 21h ;enter a string from the keyboard lea dx,buffer mov ah,0ah int 21h ;new line mov ah,9 mov dx,offset newline int 21h ;adding the $ symbol at the end of the string mov bx,0 mov bl,buffer[1] mov buffer[bx+2],'$' mov ah,9 mov dx,offset buffer+2 int 21h
5.12.2: Switch statement to convert letters to Greek letters. 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. import java.util.Scanner; public class ConvertToGreek {public static void main (String [] args) {Scanner scnr = new Scanner(System.in);char origLetter; origLetter = scnr.next().charAt(0); /* Your solution goes here */ }}
def SomeMethod(a,b): a= a+b b=b+a print(a,b,end=" ") return (a+b) def main(): x=10 y=20 print(SomeMethod(x,y)) main() x and y are called: ? a and b are called: ?
Task 2:Modify main() so that it asks the user for a second number to be searched for, and makethe text give an answer like in the example runs based on the return value fromcountElement() instead of counting. Example run: Example runs (user input in bold, comments not partof the output initalic):Number: 5Number: 7Number: 3Number: 9Number: 1Number: 10Number: 8Number: 1Number: 9Number: 7What to search for: 9And another number to search for: 1Both numbers occur in the arrayAnother example, same array as above: What to search for: 9And another number to search for: 13One of the numbers occurs in the arrayYet another example, same array as above:What to search for: 24And another number to search for: 13None of the numbers occur in the array
Exercise 11.10. Two words are “rotate pairs” if you can rotate one of them and get the other (see rotate_word in Exercise 8.12). Exercise 8.12. ROT13 is a weak form of encryption that involves “rotating” each letter in a word by 13 places. To rotate a letter means to shift it through the alphabet, wrapping around to the beginning if necessary, so ’A’ shifted by 3 is ’D’ and ’Z’ shifted by 1 is ’A’. Write a function called rotate_word that takes a string and an integer as parameters, and that returns a new string that contains the letters from the original string “rotated” by the given amount. For example, “cheer” rotated by 7 is “jolly” and “melon” rotated by -10 is “cubed”. You might want to use the built-in functions ord, which converts a character to a numeric code, and chr, which converts numeric codes to characters. Potentially offensive jokes on the Internet are sometimes encoded in ROT13. If you are not easily offended, find and decode some of them. Please solve Exercise 11.10 -…
Review the following program: import urllib.request, urllib.parse, urllib.error fhand = urllib.request.urlopen('http://data.pr4e.org/romeo.txt') counts = dict() for line in fhand: words = line.decode().split() for word in words: counts[word] = counts.get(word, 0) + 1 print(counts) 3.1 Provide an explanation for EACH line of the following program. 3.2 Run the above program and include a full window screenshot with system time and date in the answer. 3.3 Run the above program with https://www.py4e.com/code3/romeo-full.txt and include a full window screenshot with system time and date in the answer.
import requests import json mydict = {"cost":0, "KM": 0,"Description": ""} text = """ Welcome to AA Calculator Please select one of the following options: 1. Have a look at the previous entry. 2. Make a new entry. 3. Close the Program. --> """ text2 = """ Here is the list of vehicles, please select one: 1. Hatchback 2. SUV 3. Sports Car --> """ while True: choice = int(input(text)) if choice not in [1,2,3]: print("Incorrect Choice, Try again!") if choice == 3: exit() elif choice == 2: AA_Calc = 'https://raw.githubusercontent.com/tyrone0501/AA-Petrol-Price/main/Cars.json' response = requests.get(AA_Calc) response_json = response.json() dist = float(input("\nHow many meters have you travelled: ")) choice2 = -1 while choice2 not in [1, 2, 3]: choice2 = int(input(text2)) if choice2 not in [1, 2, 3]: print("Incorrect Choice, Try again!") if choice2 == 1:…