Extract Digits
Extracting digits involves isolating and extracting individual digits from a number or other data representation. This is useful for processing digitbased data.
Some ways to extract digits:
Convert number to string, access each character as a digit
Repeatedly divide number by 10 and capture remainder as last digit
Bitwise operations to mask and shift digits
Use modulus 10 to extract last digit, divide by 10 to shift
Extracting digits is useful for:
 Converting between bases
 Encryption/decryption algorithms
 Parsing numbers in data processing
 Statistical analysis of digits
Example in Java:


Example in C++:


Example in Python:


In summary, extracting digits is useful for processing numbers and data representationally.
Extracting digits from a number involves breaking the number down into its individual digits. For instance, extracting digits from the number 1234 would result in the sequence 1, 2, 3, 4. This operation is often performed as a step in various algorithms, data manipulations, or for making calculations easier to handle.
Solution
Below are implementations of how to extract digits from a given integer number in Java, C++, and Python.
Java
In Java, you can use modulo and division operations to extract digits from a number.


C++
Similarly, in C++, you can use the %
and /
operators to get individual digits.


Python
Python provides a simpler approach using strings to achieve the same result.


You can also use the modulo and division operations in Python similar to Java and C++.


Key Takeaways
 Extracting digits involves breaking down a number into its individual digits.
 Modulo and division operations are common techniques for extracting digits.
 Java and C++ are similar in their approach using loops and arithmetic operations.
 Python provides a simpler stringbased method but can also use arithmetic like Java and C++.