Python Program to Copy All Elements of One Array into Another Array

Arrays are fundamental data structures that store collections of items. In Python, arrays (often referred to as lists) are used frequently in various applications. One common operation is copying the elements of one array into another. This operation is useful when you need a duplicate of an array for manipulation without altering the original array.

In this blog post, we'll explore a simple Python program to copy all elements from one array into another array. We'll also explain the code step-by-step.

Problem Statement

You are given an array, and you need to copy all of its elements into another array without using any built-in functions like copy(). The task is to manually copy each element from the source array to the destination array.

Approach

The approach is straightforward:

1. Create a new empty array (list) to hold the copied elements.
2. Iterate through each element in the source array.
3. Append each element to the new array.

Python Code

Here is the Python code implementing the above approach:

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# Python program to copy all elements of one array into another array

# Initialize the source array

source_array = [1, 2, 3, 4, 5]

# Initialize an empty array to store the copied elements

destination_array = []

# Iterate through each element in the source array and append it to the destination array

for element in source_array:

    destination_array.append(element)

# Print the original and copied arrays

print("Original Array:", source_array)

print("Copied Array:", destination_array)

Output

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Original Array: [1, 2, 3, 4, 5]

Copied Array: [1, 2, 3, 4, 5]

Explanation of the Code

1. Initialization: The program starts by defining a source_array with some initial values.
2. Empty Destination Array: An empty list destination_array is initialized to store the copied elements.
3. Iteration and Copying: The for loop iterates through each element of the source_array, and each element is appended to the destination_array using the append() method.
4. Printing the Arrays: Finally, the original and the copied arrays are printed to the console.

This is the screenshot of Jupyter Notebook of Above Program

Conclusion

Copying elements from one array to another is a simple yet essential operation in programming. This fundamental task helps in creating backups, performing transformations without altering the original data, and many other scenarios. Understanding how to manually copy elements deepens your grasp of basic data manipulation in Python.