# Python Multi-threading and Concurrency: Concurrent even and odd number printing

## Python Multi-threading: Exercise-3 with Solution

Write a Python program that creates two threads to find and print even and odd numbers from 30 to 50.

**Sample Solution:**

**Python Code:**

```
import threading
def print_even_numbers():
print("List of even numbers:")
for i in range(30, 51, 2):
print(i, end = " ")
def print_odd_numbers():
print("\nList of odd numbers:")
for i in range(31, 51, 2):
print(i, end = " ")
# Create threads for printing even and odd numbers
even_thread = threading.Thread(target=print_even_numbers)
odd_thread = threading.Thread(target=print_odd_numbers)
# Start the threads
even_thread.start()
odd_thread.start()
# Wait for the threads to complete
even_thread.join()
odd_thread.join()
```

Sample Output:

List of even numbers: 30 32 34 36 38 40 42 44 46 48 50 List of odd numbers: 31 33 35 37 39 41 43 45 47 49

**Explanation:**

In the above exercise,

- We define two functions: "print_even_numbers()" and "print_odd_numbers()".
- The "print_even_numbers()" function uses a loop to print even numbers from 30 to 50, incrementing by 2.
- The "print_odd_numbers()" function does the same for odd numbers, starting at 31 and incrementing by 2.
- Create two threads, "even_thread" and "odd_thread", targeting their respective functions.
- Start the threads using the start() method, which initiates their parallel execution.
- Finally, we use the join() method to wait for threads to complete.

**Flowchart:**

**Have another way to solve this solution? Contribute your code (and comments) through Disqus.**

**Previous:** Concurrent file downloading.

**Next:** Multi-threaded factorial calculation.

**What is the difficulty level of this exercise?**

Test your Programming skills with w3resource's quiz.

**Weekly Trends**- 100 Python Projects for Beginners with solution
- Mastering NumPy: 100 Exercises with solutions
- SQL Tutorial
- SQL Inner Join
- Python Exercises, Practice, Solution
- Python Interview Questions and Answers: Comprehensive Guide
- MongoDB Exercises, Practice, Solution
- SQL Exercises, Practice, Solution - JOINS
- Java Basic Programming Exercises
- SQL Subqueries
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript HTML Form Validation
- Java Collection Exercises