In today’s fast-paced, often "agile" software development, how can the secure design be implemented?
1 answer:
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Answer:
Go to explaination for the program code.
Explanation:
Before running the program you need to have these files created like below in your unix box.
Unix Terminal> cat nouns.txt
BOY
GIRL
BAT
BALL
Unix Terminal> cat articles.txt
A
THE
Unix Terminal> cat verbs.txt
HIT
SAW
LIKED
Unix Terminal> cat prepositions.txt
WITH
BY
Unix Terminal>
Code:
#!/usr/local/bin/python3
import random
def getWords(filename):
fp = open(filename)
temp_list = list()
for each_line in fp:
each_line = each_line.strip()
temp_list.append(each_line)
words = tuple(temp_list)
fp.close()
return words
articles = getWords('articles.txt')
nouns = getWords('nouns.txt')
verbs = getWords('verbs.txt')
prepositions = getWords('prepositions.txt')
def sentence():
return nounPhrase() + " " + verbPhrase()
def nounPhrase():
return random.choice(articles) + " " + random.choice(nouns)
def verbPhrase():
return random.choice(verbs) + " " + nounPhrase() + " " + prepositionalPhrase()
def prepositionalPhrase():
return random.choice(prepositions) + " " + nounPhrase()
def main():
number = int(input('Enter number of sentences: '))
for count in range(number):
print(sentence())
if __name__=='__main__':
main()
kindly check attachment for code output and onscreen code.
Answer:
Here is the corrected program:
import java.util.Scanner; //to accept input from user
public class 02_14_Activity_one { //class name
public static void main(String[] args) { //start of main method
Scanner scan = new Scanner(System.in); //creates Scanner class object
System.out.println("Enter first string"); //prompts user to enter first string
String s1 = scan.nextLine(); //reads input string from user
System.out.println("Enter second string"); //prompts user to enter second string
String s2 = scan.nextLine(); //reads second input string from user
System.out.println("Enter number of letters from each word"); //enter n
int n = scan.nextInt(); //reads value of integer n from user
System.out.println(s1.substring(0,n) + s2.substring(s2.length() - n ));
} } //uses substring method to print a string made up of the first n letters of s1 and the last n letters of s2.
Explanation:
The errors were:
1.
Scanner scan = Scanner(System.in);
Here new keyword is missing to create object scan of Scanner class.
Corrected statement:
Scanner scan = new Scanner(System.in);
2.
String s1 = nextLine();
Here object scan is missing to call nextLine() method of class Scanner
Corrected statement:
String s1 = scan.nextLine();
3.
String s2 = Scanner.nextLine();
Here class is used instead of its object scan to access the method nextLine
Corrected statement:
String s2 = scan.nextLine();
4.
String n = scan.nextLine();
Here n is of type String but n is a whole number so it should be of type int. Also the method nextInt will be used to scan and accept an integer value
Corrected statement:
int n = scan.nextInt();
5.
System.out.println(s1.substring(1,n-1) + s2.substring(s1.length()-n));
This statement is also not correct
Corrected statement:
System.out.println(s1.substring(0,n) + s2.substring(s2.length() - n ));
This works as follows:
s1.substring(0,n) uses substring method to return a new string that is a substring of this s1. The substring begins at the 0th index of s1 and extends to the character at index n.
s2.substring(s2.length() - n ) uses substring method to return a new string that is a substring of this s2. The substring then uses length() method to get the length of s2 and subtracts integer n from it and thus returns the last n characters of s2.
The screenshot of program along with its output is attached.
