Answer:
//here is code in java.
import java.util.*;
class Solution
{
// main method of class
public static void main (String[] args) throws java.lang.Exception
{
try{
// declare an initialize first string variables
String st1="hello";
// declare an initialize first string variables
String st2="world";
// create another string variable
String st3;
// exchange the value of both string variables
st3=st1;
st1=st2;
st2=st3;
System.out.println("value of first String after exchange: "+st1);
System.out.println("value of second String after exchange: "+st2);
}catch(Exception ex){
return;}
}
}
Explanation:
declare and initialize two string variables.Create another string variable "st3". first assign value of "st1" to "st3" after then value of "st2" to "st1" and then assign value of "st3" to "st2". This will exchange the values of both the string.
Output:
value of first String after exchange: world
value of second String after exchange: hello
The graph would have to be pointing completely down to be falling freely.
Answer:
-Electronic mail. At least 85% of the inhabitants of cyberspace send and receive e-mail. ...
-Research.
-Downloading files.
-Discussion groups. ...
-Interactive games. ...
-Education and self-improvement. ...
-Friendship and dating. ...
-Electronic newspapers and magazines.
Jack must use electronic communication or e-mail to distribute information and an attachment as quickly as possible to all their clients. In 1–2 sentences, describe what Jack should do. In this way, he can also retain a hard copy of the memo as well as the attachments used for future reference.
Answer:
Expert systems
Explanation:
Experts systems are known as computerized advisory programs that are used for the imitation of expert's reasoning processes when solving problems that pose a difficulty. They are usually a knowledge base that have several accumulated experience and certain rules that are used in the application of the knowledge according to the specific situation.
