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3 years ago

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Computers and Technology

1 answer:

SVEN [57.7K]3 years ago

7 0

Answer:

The answer to this question is given below in the explanation section.

Explanation:

In this given program there are two errors, first in line number 2 that stores a string value, not int. The second error is at line 6, a symbol "*" represents multiplication, not addition.

To solve these errors, in line #2, convert the input to an int variable value 1. To add the values of variables (value1 and value2), use the plus symbol "+" in the print statement at line #6.

The correct program is given below:

value1= int(input("Enter first number: "))

#get second number and store it into value2 variable.

value2= int(input("Enter second number: "))

#add the values store in variables (value1 and value2) and then print

print (value1 + value2)

You might be interested in

(Solved—15 Lines) In many jurisdictions a small deposit is added to drink containers to encourage people to recycle them. In one

andrezito [222]

Answer:

JAVA program is given below.

import java.util.Scanner;

public class Main

{

//static variables declared and initialized as required

static float deposit1 = 0.10f;

static float deposit2 = 0.25f;

static float refund1;

static float refund2;

static int num_one_lit;

static int num_more;

public static void main(String[] args){

Scanner sc = new Scanner(System.in);

System.out.print("Enter the number of containers of 1 liter or less: ");

num_one_lit = sc.nextInt();

System.out.print("Enter the number of containers of more than 1 liter: ");

num_more = sc.nextInt();

//refund computed based on user input

refund1 = num_one_lit*deposit1;

refund2 = num_more*deposit2;

//displaying refund

System.out.printf("Total refund amount for containers of 1 liter or less is $%.2f %n", refund1);

System.out.printf("Total refund amount for containers of more than 1 liter is $%.2f %n", refund2);

}

OUTPUT

Enter the number of containers of 1 liter or less: 5

Enter the number of containers of more than 1 liter: 2

Total refund amount for containers of 1 liter or less is $0.50

Total refund amount for containers of more than 1 liter is $0.50

Explanation:

1. Variables are declared at class level hence declared as static.

2. Variables holding deposit also initialized with the given values.

3. User input is taken for the number of containers in both categories.

4. The total value of refund is computed using the given values and user entered values.

5. The total refund is displayed to the user for both categories.

6. To display two decimal places always, variables to hold deposit and refund are declared as float.

7. The keywords used for decimals are %.2f %n. The %.2f keyword indicates two decimal places to be displayed in float variable, %n indicates a numeric value is to be displayed.

8. The printf() method is used to display the formatted output for refund amount.

9. The keywords used to display the formatted output is derived from C language.

10. All the code is written inside class and execution begins from the main() method.

4 0

4 years ago

Whe you read anything online how do you know whether or not is coming from a reliable source?

lorasvet [3.4K]

You can find the author and research his/her credibility

You can cross-reference the information to other documentations

You can investigate the credibility of the overall website or community. Teachers like to say that community sites like wikipedia aren't very reliable.

4 0

3 years ago

Read 2 more answers

Def shared_motif(dna_list):

krok68 [10]

Answer:

Explanation:

The following code is written in Python, the function creates various nested loops to loop through each individual string comparing letter by letter in order to find the longest common substring. Finally, returning the substring itself.

def shared_motif(dna_list):

substr = ''

if len(dna_list) > 1 and len(dna_list[0]) > 0:

for x in range(len(dna_list[0])):

for i in range(len(dna_list[0]) - x + 1):

if i > len(substr) and all(dna_list[0][x:x + i] in y for y in dna_list):

substr = dna_list[0][x:x + i]

return substr

arr = ["GATTACA", "TAGACCA", "ATACA"]

stems = shared_motif(arr)

print(stems)

5 0

3 years ago

Java:

Agata [3.3K]

Answer:

import java.util.*;

public class work {

// function for counting unique character

public static int numUnique(String input) {

boolean[] list = new boolean[Character.MAX_VALUE];

for (int i = 0; i < input.length(); i++) {

list[input.charAt(i)] = true;

}

int count = 0;

for (int i = 0; i <list.length; i++) {

if (list[i] == true){

count++;

}

return count;

}

public static void main(String args[])

{

List<String>list=new ArrayList<>(); // creatng array list of type string

list.add("abcdef");

list.add("aaabcd");

list.add("bccddee");

list.add("abcddd");

list.add("a");

for(String str:list)

{

// for printing the results

System.out.println("given string : "+ str+" , number of unique values :"+numUnique(str));

}

Explanation:

5 0

4 years ago

What are the differences between tkinter toolkit and PyQt?

lesantik [10]

Answer:

See the explanation

Explanation:

tkinter toolkit

Easy to use
Easy to learn
Easy to debug
Good for simple tasks
TkInter applications are simpler as compared to PyQt because it is included in standard Python distribution.
Faster than PyQt.
Does not have advanced widgets.
No interface builder available.
Free for commercial utilization.

PyQt

More flexible in terms of coding.
Harder to debug as compared to tkinter
GUI is clearer in display than tkinter
Widgets are more interactive than that of tkinter
size of a PyQt program is larger than that of tkinter
uses a variety of paltform APIs and gives primary access to these APIs through a unique API.
Has an interface builder that allows to design interfaces without writing any code.
Has modern widgets.
Due to its vast interface and several UI components it is a bit confusing to learn as compared to tkinter.
Commercial license is required to release the code.
Cross-platform and native GUI.

Widgets are GUI components such as buttons, labels, menus.

a) Label

This is a tkinter widget to show the text or image on the screen. It looks like a display box. The user can easily edit or update label.

For example to display a label with text "Hello World" the following chunk of code is used:

import tkinter

widget = tkinter.Tk()

label =tkinter.Label(widget, text="Hello World")

label.pack()

tkinter.mainloop()

b) Entry

This is a tkinter widget to accept the text input from user. For example if you want to get a single line text from user then you can use Entry widget. The code below displays an entry widget with the message: Enter input text: Here the user can input the text.

import tkinter

widget = tkinter.Tk()

entry = tkinter.Entry(widget)

entry.insert(0, "Enter input text:")

entry.pack()

tkinter.mainloop()

c) Button

This is a tkinter widget to add a button in an application. You can enter some text or an image in this button convey its purpose. When you click on the button a function is called or an event is emitted.

The following chunk of code displays a button with the text "Click Me" on the button.

import tkinter

widget = tkinter.Tk()

button = tkinter.Button(widget, text="Click Me")

button.pack()

tkinter.mainloop()

d) Frame

This is a tkinter widget to group together and organize other widgets and arranges their position.

The following chunk of code displays an outer frame with a label with text "parent label" and an inner frame with a label of text "child frame".

import tkinter

widget = tkinter.Tk()

frame = tkinter.LabelFrame(widget,text="parent frame")

label= tkinter.Label(frame,text="child frame")

frame.pack(padx=10, pady=10)

label.pack()

tkinter.mainloop()

5 0

3 years ago