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binary to decimal

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

9/20/2017 5:44:11 PM

saddik shaik

32 Answers

New Answer

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Sorry.

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

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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

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I want code in java

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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.

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

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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.

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Can you write the code?

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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; }

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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.

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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?

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

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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.

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

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Don't you understand me?

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

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Why you think imy logic isn't working?

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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.

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

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I thought you want it to be java?