Answer:
<u> FlashCard.java</u>
- public class FlashCard {
- String Question;
- String Answer;
-
- public FlashCard(String q, String a){
- this.Question = q;
- this.Answer = a;
- }
-
- public String toString(){
- String output = "";
- output += "Question: " + this.Question + "\n";
- output += "Answer: " + this.Answer;
- return output;
- }
-
- public boolean equals(String response){
- if(this.Answer.equals(response)){
- return true;
- }
- else{
- return false;
- }
- }
- }
<u>Main.java</u>
- public class Main {
- public static void main(String[] args) {
- FlashCard card1 = new FlashCard("What is highest mountain?", "Everest");
- FlashCard card2 = new FlashCard("What is natural satelite of earth?", "Moon");
- FlashCard card3 = new FlashCard("Who is the first president of US?", "George Washington");
- FlashCard cards [] = {card1, card2, card3};
-
- for(int i=0; i < cards.length; i++){
- System.out.println(cards[i]);
- }
- }
- }
Explanation:
In FlashCard.java, we create a FlashCard class with two instance variable, Question and Answer (Line 2 - 3). There is a constructor that takes two input strings to initialize the Question and Answer instance variables (Line 5-8). There is also a toString method that will return the predefined output string of question answer (Line 10 - 15). And also another equals method that will take an input string and check against with the Answer using string equals method. If matched, return True (Line 17 -24).
In Main.java, create three FlashCard object (Line 3-5) and then put them into an array (Line 6). Use a for loop to print the object (Line 8-10). The sample output is as follows:
Question: What is highest mountain?
Answer: Everest
Question: What is natural satelite of earth?
Answer: Moon
Question: Who is the first president of US?
Answer: George Washington
<span>Checking account is another name for the current account. Checking account offers lower interest rate and it is easy to access you money in the checking account as compared to a savings account.
Thus, the answer is HIGHER and HARDER.</span>
Answer:
Program for the above question in python:
mass = float(input("Enter the mass in grams")) # It is used to take the mass as input.
density = float(input("Enter the density grams per cm cube")) # It is used to take the input for the grams.
print("Volume ={:.2f}".format(mass/density)) #It is used to print the Volume.
Output:
- If the user inputs as 2.98 and 3.2, then it will results as 0.92.
Explanation:
- The above code is in python language, in which the first statement is used to take the inputs from the user for the mass and sore it into a mass variable.
- Then the second statement also takes the input from the user and store it into a density variable.
- Then the third statement of the code is used to print the volume up to two places using the above-defined formula.
