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
get resources like nails and wood and a couple rolls of tape if anything goes wrong
Answer:
Static scoping: x is 5
Dynamic scoping : x is 10.
Explanation:
Static scoping :
In static scoping the variable of a function take the value within the function.
If there is no values exist within the function then take the global value of the variable.
var x // No value is assigned to x so it check global value of x
function sub1() {
document.write(“x = “ + x + “”); // So it print x = 5
}
function sub2() {
var x;
x = 10;
sub1();
}
x = 5; // It is the global value of x
sub2();
Static scoping: x is 5
Dynamic scoping :
In Dynamic scoping the variable of a function take the value all the calling function ends.
If the global value is the last assigned value of a variable then it take that value.
If there exist some other function after global variable value if that function contain the variable with some assigned value variable take that value.
var x
function sub1() {
document.write(“x = “ + x + “”);
}
x = 5; // At this point x value is 5 and check there exist a function
sub2(); // So now call this function
function sub2() {
var x;
x = 10; // The value of x = 5 is replaced with x = 10
sub1();
}
Dynamic scoping : x is 10.
Answer:
IP address.
Explanation:
An IP address is an acronym for internet protocol address and it can be defined as a unique number assigned to a computer or other network devices, so as to differentiate each device from one another in an active network system. Thus, an IP address is typically used to uniquely identify each computer or network devices connected to the internet or network.
Hence, 69.147.76.15 is an example of an IP address.
In Computer networking, IP address are classified into two (2) main categories and these are;
1. Local (internal) IP address.
2. Global (external) IP address.
Generally, when this IP address such as 69.147.76.15 is translated by a domain name system (DNS), it is mapped to the domain name yahoo.com which is much more understandable or comprehensible to the end users.
