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:
A website is a mix of web pages while a web page is a single entity.
Explanation:
E.........................
Answer:
Physical / Data link layer
Explanation:
If two computers (A & B) are directly connected through Ethernet cable. A is sending data to B, the data would be transmitted if the network is clear but if the network is not clear, the transmission would wait until the network is clear.
The Open Systems Interconnection model (OSI model) has seven layers each with its own function.
The physical layer is the first layer responsible for data transmission over a physical link. The data packets are converted to signals over a transmission media like ethernet cable.
The data link layer is the second layer in the OSI layer responsible for transmission of data packets between nodes in a network. It also provides a way of detecting errors and correcting this errors produced as a result of data transmission.
