binary to decimal

Question

Input :binary number.
Output:Its eqivalent decimal.
ex:
Input:1001.
Output:17

Answer 1

Sorry.

Answer 2

Please post your code, then I can see where you did mistakes.

Answer 3

So, i saw you tried it, and because I don't understand everything in your code (no c++ expert)
I'll give you my code.
If you have questions, ask.
https://code.sololearn.com/cmySYgxy5Bkl/?ref=app

Answer 4

I want code in java

Answer 5

Look, to get the decimal value of a binary number, you use this formula:
i = index
n = number at i

n × Math.pow(2, i);
//You have to sum the value of all calculations
Like:
binary:101
decimal : 1 * Math.pow(2, 0) + 0 * Math.pow (2, 1) + 1 * Math.pow(2, 2)

So, if you want to convert, you have to find a way to
take the number of each index and calculate like above.

Answer 6

Then,how to take each number from that given number.And the input is given dynamically.

Answer 7

so, at first, i would turn the binary String like
10011 --> 11001
Then you take a for loop starting at 0; Because you turned the String, you can use theString.charAt (i), i would be the variable of the for loop.

Answer 8

Can you write the code?

Answer 9

Ur logic is wrong.

The actual logic is
if n=1001;y=1;dec=0;
for(n!=0)
{
x=x%10;
dec=dec+2*y;
n=n/10;
y=y*y;
}

Answer 10

No, my logic is correct. I've got a working code, but if I would give you a code that you don't understand, it doesn't help.

Answer 11

I've got a question, in your posted code there's a variable named x, where do you create it and where you assign a value to it the first time?

Answer 12

i explained only logic not the answer .Using that logic we can write the code for my problem.

Answer 13

I know how to do that. I gave you ideas how to start off, so write a code. It's not important if it's working, but first, try it yourself. I don't want to throw a code into this thread and you don't understand it.

Answer 14

ok.if your code was running succesful .please post the code in comment.

Answer 15

Don't you understand me?

Answer 16

i tried your logic but not working at all.so, i create a logic its working. This is my intension.

Answer 17

Why you think imy logic isn't working?

Answer 18

Using with your logic, i write a code and after that i execute that code .finally there is no output .
if, your was succesfully executed .put in your code in comment and i corrected where i gonna do mistakes in that code.

Answer 19

https://code.sololearn.com/cO8hMB0fzgHy/?ref=app

Answer 20

I thought you want it to be java?