Answer:
D. Identify the problem.
Explanation:
The five steps are -
- Understanding the problem
- Select any alternative way to solve a problem
- Select the best way to solve a problem from the list of alternative solutions.
- List the instructions to solve the problem using the selected solution and evaluate the solution .
Identify the problem - This is the first steps towards solving a given problem. One must properly comprehend what exactly the challenge is.
I am pretty sure A is the answer because it makes most sense plugged into the sentence.
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
Answer:
// here is code in c.
#include <stdio.h>
// main function
int main()
{
// variable to store year
int year;
printf("enter year:");
// read the year
scanf("%d",&year);
// if year>=2101
if(year>=2101)
{
printf("Distant future");
}
//if year in 2001-2100
else if(year>=2001&&year<=2100)
{
printf("21st century");
}
//if year in 19011-2000
else if(year>=1901&&year<=2000)
{
printf("20th century");
}
// if year<=1900
else if(year<=1900)
{
printf("Long ago");
}
return 0;
}
Explanation:
Read the year from user.After this, check if year is greater or equal to 2101 then print "Distant future".If year is in between 2001-2100 then print "21st century".If year is in between 1901-2000 then print "20th century".Else if year is less or equal to 1900 then print "Long ago".
Output:
enter year:2018
21st century
