1) a, you write class Foo { ... }
2) c, a constructor does not have a return type
3) d, every instance gets its own copy
4) b, a reference variable. Ofcourse, an instance or class variable may or may not be a reference variable.
5) c, the new keyword instantiates objects.
Answer:
Attached to the keyboard
Explanation:
Touch pad is the type of the mouse that is located on the laptop just near the keyboard or we can say that it is attached to the keyboard of the laptop. It has almost two buttons that are used for the purpose of Left and Right Click.
The touch pad is used to move the cursor to the required position on the screen of the laptop. This will work by just moving figure on the touch pad as the cursor move on the screen in the same direction of the finger..
Answer:
1.....There is a standard structure for emails. Email contents are primarily classified as two, the header and the body. We are going to see the contents come under the two subparts. The email header gives us common details about the message such as the unique identity of the message.
Explanation:
2......a program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.
its components are ....
A search engine normally consists of four components e.g. search interface, crawler (also known as a spider or bot),indexer, and database.
3.....Advantages Of eLearning
It is a very efficient way of delivering courses online. Due to its convenience and flexibility, the resources are available from anywhere and at any time. Everyone, who are part time students or are working full time, can take advantage of web-based learning.
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Answer:
#include <bits/stdc++.h>
using namespace std;
int main() {
string email,username,host;//strings to store email,username,hostname..
cout<<"Enter the email address "<<endl;
cin>>email;//taking input of email address..
bool flag=1;
for(int i=0;i<email.length();i++)//iterating over the string email..
{
if(email[i]=='@')//if @ symbol is encountered make flag 0 skip this iteration.
{
flag=0;
continue;
}
if(flag==1)//add to username if flag is 1.
{
username+=email[i];
}
else//add tom host..
host+=email[i];
}
cout<<"The username is "<<username<<endl<<"The host name is "<<host;//printing the username and hostname..
return 0;
}
Explanation:
I have taken three strings to store the email address entered by user ,username and host to store username and host name respectively.Then I am iterating over the string email if @ is encountered then skip that iteration before that keep adding characters to username string and after that keep adding characters to host.