Please help me

Question

I want to print "enter a number".After that enter a number. if i dont enter anything and only press Enter. i want to print "enter a number" again!

Answer 1

you can already initiate the variable with choosing any random value.. and use the conditional loop...

eg.

#include<iostream>
using namespace std;
int main(){

int a=137347985375;

do{
cout<<"\nEnter a number : ";
cin>>a;}while(a==137347985375);

return 0;
}

here I initiated the variable with 137347985375 if user won't enter any value the while statement will become true and it will again ask user to enter a value.

Answer 2

🇻🇳GNAOH🇻🇳

you can also use this program if the data type of your variable is char.

#include<iostream>
using namespace std;
int main(){

char a;

do{
cout<<"\nEnter a number : ";
cin>>a;}while(a=='\r');

return 0;

}

here '\r' is a character for enter.

if it's data type is string use "\r".

Answer 3

hope you got an idea!

Answer 4

Take a look at this -> https://stackoverflow.com/questions/18728754/checking-input-value-is-an-integer

Answer 5

Kashir what if user enter negative value!!

Answer 6

choose number such that it will way far than users imagination!!

Answer 7

Kashir first read what is asked... still if you don't understand then copy my code and run it.

Answer 8

good ideA

Answer 9

it is a excellent question

Answer 10

int a =-23545;
do {
cout<<"\nplease enter a number";
cin>>a;
cout<<a;
}
while(a>0)

Answer 11

Suraj in your code if user enter value but not equal to number you enter then ? your code is wrong