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2 years ago

In Python please:

Computers and Technology

2 answers:

Pepsi [2]2 years ago

5 0

Answer:

Um...What?!

Explanation:

lol

Semmy [17]2 years ago

3 0

Answer:

user_tweet = input("Enter the string from the tweet: ")

word = "LOL"

if word in user_tweet:

print('LOL means laughing out loud.')

else:

print('No abbreviation.')

Explanation:

Prompt user to enter a string representing the tweet phrase using the input function
Store the string a variable called user_tweet
use Python's in operator to check if 'LOL' is in the string entered. With an if and else statement print the appropriate message as required by the question

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(NumberFormatException)Write the bin2Dec(String binaryString) method to convert a binary string into a decimal number. Implement

tresset_1 [31]

The following program will be used that prompts the user to enter a binary number as a string and displays decimal equivalent of the string.

<u>Explanation:</u>

NumberFormat.java

import java.util.Scanner;

public class NumberFormat{

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

try{

System.out.println("Enter a binary string:");

String s = scan.next();

int integerValue = bin2Dec(Integer.parseInt(s));

System.out.println("The decimal value of "+s+" is "+integerValue);

}

catch(NumberFormatException e){

System.out.println(e);

}

public static int bin2Dec(int binaryNumber) throws NumberFormatException{

int decimal = 0;

int p = 0;

try{

while(true){

if(binaryNumber == 0){

break;

} else {

int temp = binaryNumber%10;

decimal += temp*Math.pow(2, p);

binaryNumber = binaryNumber/10;

p++;

}

catch(NumberFormatException e){

throw new NumberFormatException("Invalid binary number");

}

return decimal;

}

Output:

Enter a binary string:

1011000101

The decimal value of 1011000101 is 709

5 0

2 years ago

The Windows ________ is a hierarchical database that stores system configuration information. It maintains files used to control

Diano4ka-milaya [45]

Answer:

Registry

Explanation:

Windows Registry is used to store the configuration and setting information for hardware and software program which is critical for Windows operation. The registries are structured in hierarchical database model.

Basically, hierarchical database model is akin to a tree format which consist of the parent nodes and their child nodes. For example, a node named as HKEY_LOCAL_MACHINE can possess child nodes HARDWARE, SOFTWARE AND SYSTEM.

The node in the tree is also termed as a key.

8 0

2 years ago

array of String objects, words, has been properly declared and initialized. Each element of words contains a String consisting o

Vlad [161]

Answer:

for(String s:words)

if(s.endsWith("ing"))

System.out.println(s);

Explanation:

Create an enhanced for loop that iterates through the words array

Check if an element in words ends with "ing" using endsWith() method (Since it is said that strings are lowercase letters, we do not need to check it)

If you find one that ends with "ing", print the element

5 0

2 years ago

Cardinality ratios often dictate the detailed design of a database. The cardinality ratio depends on the real-world meaning of t

Otrada [13]

Solution :

ENTITY 1 CARDINALITY RATIO ENTITY 2

1. Student 1 to many Social security card

A student may have more than one

social security card (legally with the

same unique social security number),

and every social security number belongs

to a unique.

2. Student Many to Many Teacher

Generally students are taught by many

teachers and a teacher teaches many students.

3.ClassRoom Many to Many Wall

Do not forget that the wall is usually

shared by adjacent rooms.

4. Country 1 to 1 Current President

Assuming a normal country under normal

circumstances having one president at a

time.

5. Course Many to Many TextBook

A course may have many textbooks and

text book may be prescribed for different

courses.

6. Item Many to Many Order

Assuming the same item can appear

in different orders.

7. Student Many to Many Class

One student may take several classes.

Every class usually has several students.

8. Class Many to 1 Instructor

Assuming that every class has a unique

instructor. In case instructors were allowed

to team teach, this will be many-many.

9. Instructor 1 to 1 Office

Assuming every instructor has only one

office and it is not shared. In case of offices

shared by 2 instructors, the relationship

will be 2-1. Conversely, if any instructor has a joint

appointment and offices in both departments,

then the relationship will be 1-2. In a very general

case, it may be many-many.

10. E-bay Auction item 1-Many E-bay bid

1 item has many bids and a bid is unique

to an item.

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2 years ago

In a relational database model, a(n) _____ operation pares down a table by eliminating columns according to certain criteria. in

nikklg [1K]

I guess the correct answer is Project

If thе usеr is intеrеstеd in sеlеcting thе valuеs οf a fеw attributеs, rathеr than sеlеctiοn all attributеs οf thе Tablе (Rеlatiοn), thеn οnе shοuld gο fοr Prοjеct Οpеratiοn.

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2 years ago