Answer:
False ( A )
Explanation:
The implementation is incorrect hence the return would be false and this is because : root.left is supposed to be NULL, root.right is supposed to be NULL and when these conditions are met then the Binary tree would be empty.
The condition for the above statement would be represented as
if( root.left = = null && root.right == null &&root.info == null)
return true;
else
return false;
He invented the tabulating machine. In 1890 U.S
Answer:
The ARPANET was the first network that provided commercial internet services. And also it was the first network to make use of the TCP/IP protocols. However, you need to know that the first ISP or the internet service provider was the Telenet, and it was the first commercial version of the ARPANET which was introduced in the year 1974. And this service started its service for the customers in the year 1989.
Explanation:
Please check the answer section.
Answer:
# include <iostream.h>
# include <stdio.h>
# include <string.h>
using namespace std;
class citizen
{
int i;
public string name[30];
public long int phonenumber[30];
public void addindividual(string name1)
{
If (i<=30)
{ int flag=0;
for(int j=0; j<=i;j++)
{
if (strcmp(name[i], name1)
{
flag=1;
}
else
{
flag=0;
}
}
If (flag)
{
if (i<30)
{
for(j=i+1;j<=30; j++)
{
cout<<"Enter the name:"; getchar(name[j]);
cout<<"Enter the phone number:"; cin>>phonenumber[j];
i++;
}
else
{
cout<<"The person already exists";
exit();
}
}
else
{
cout<<"array is full:";
exit();
}
}
}
Void main()
{
string str;
cout<<" Enter name:";
getline(cin, str); ;
citizen c1=new citizen();
c1.addindividual(name1);
}
Explanation:
With a little more effort you can make the program allow the user to enter any number of details, but less than 30 overall. We have used here flag, and as a programmer we know why we use the Flag. It is used to check whether certain Boolean condition is fulfilled or not. Here, we are checking whether a given name is present in the array of names, and if it is not present, we add that to the list. And if the name is present, we print, it already exist.
Answer: False
Explanation: Software engineering is the designing, analyzing, creating the software application as per the requirement of the user. The programming languages is the base for the designing of the application the software engineering field.
At the time of building system ,there is the requirement of many resources for the development.There is the requirement of the software skills, programming knowledge, resources and tools for the working and designing.Thus, there are different resources, people,skills processes, problem solving skill etc required for the building of the system.
