Question 5 (10 points)
1 answer:
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Answer:
// ArrayList class is imported
import java.util.ArrayList;
// Iterator class is imported
import java.util.Iterator;
// Main class is defined
class Main {
// main method to begin program execution
public static void main(String args[]) {
// names ArrayList of String is defined
ArrayList<String> names = new ArrayList<>();
// 5 names are added to the list
names.add("John");
names.add("Jonny");
names.add("James");
names.add("Joe");
names.add("Jolly");
// for loop to print the names inside the arraylist
for(int index = 0; index <names.size(); index++){
System.out.println(names.get(index));
}
// A blank line is printed
System.out.println();
// A newMethod is called with names as argument
newMethod(names);
// A blank line is printed
System.out.println();
// Instance of Iterator class is created on names
Iterator<String> iter
= names.iterator();
// Displaying the names after iterating
// through the list
while (iter.hasNext()) {
System.out.println(iter.next());
}
}
// the newmethod is created here
public static void newMethod(ArrayList<String> inputArray){
// A new name is added at index 2
inputArray.add(2, "Smith");
// the name in index 4 is removed
inputArray.remove(4);
// for each is used to loop the list and print
for (String name : inputArray) {
System.out.println(name);
}
}
}
Explanation:
The code is well commented. An output image is attached.
Answer:
class Question:
def __init__(self):
self.text = ""
self.answer = ""
def setText(self,text):
self.text = text
def setAnswer(self,answer):
self.answer = answer
def display(self):
print(self.text)
def checkAnswer(self,response):
ans = self.answer.replace(' ','')
ans = ans.lower()
response = response.replace(' ','')
response = response.lower()
if(response == ans):
return "Correct answer"
else:
return "Wrong answer"
class FillInQuestion (Question):
def __init__(self):
super(Question, self).__init__()
def setText(self,text):
temp = text.split("_")
temp[0] = temp[0] + "_______"
super(FillInQuestion,self).setText(temp[0])
super(FillInQuestion, self).setAnswer(temp[1])
def main():
# Create the question and expected answer.
q = FillInQuestion()
q.setText("The inventor of Python was _Guido van Rossum_")
# Display the question and obtain user's response.
q.display()
response = input("Your answer: ")
print(q.checkAnswer(response))
main()
Explanation:
The python program defines two classes, a parent class called Question and a child class called FillInQuestion. The screen shot of the output is seen below.
