What error I am having in BELOW CODE?

Question

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Write a program using only while loops to print all the even numbers from 1 to n

Input

10

Output

2

4

6

8

10

What I have tried:

I AM GET

TING ERROR

 v=int( input("153"))
rev=0

while 0!=v:

    r=v%10

rev=rev*10+rev
v=v/10
print(rev)

Posted 10-Apr-22 1:10am

shruti patil 2022

Updated 10-Apr-22 1:29am

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CPallini 10-Apr-22 10:46am

Copying a flawed, unrelated Python program while a Java program is required doesn't look a good practice, to me.

2 solutions

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Patrice T · Answer 1 · 2022-04-10T01:25:00

Quote:
What error I am having in BELOW CODE?

First of all, it is not Java code.
Then try to replace

Python

v=int( input("153"))
rev=0

while 0!=v:

    r=v%10

rev=rev*10+rev
v=v/10
print(rev)

With

Python

v=int( input("153"))
rev=0
while 0!=v:
    r=v%10
    rev=rev*10+rev
    v=v/10
    print(r)

Quote:
Write a program using only while loops to print all the even numbers from 1 to n

Your main problem is that this code do not fit the requirement, not even remotely.
Read again requirement and try again.

Richard MacCutchan · Answer 2 · 2022-04-10T01:29:00

Solution 2

You have tagged your question "Java", but the code is Python. Also, your code has nothing to do with the question. You are supposed to print all even numbers, so dividing and multiplying by ten will not produce the correct results. Your loop should start at 2, increment by 2, and stop when the loop value is equal to, or greater than, the control number that is first input.

Posted 10-Apr-22 1:29am

Richard MacCutchan

Comments

CPallini 10-Apr-22 10:44am

5.

Richard MacCutchan 10-Apr-22 11:34am

Thanks, but my "solution" is only a rewording of the original question.