# Xylem and Phloem Number in Java

(Last Updated On: 08/09/2023)

In this blog, we’ll delve into the world of Xylem and Phloem numbers in Java. These unique numerical patterns may not have botanical significance, but they hold great importance in the context of coding. By the end of this journey, you’ll not only comprehend Xylem and Phloem numbers but also be able to implement them in your Java projects, bringing a touch of natural beauty to your code.

In the vast world of botany, we often encounter intriguing terms like Xylem and Phloem. These terms represent the essential vascular tissues responsible for transporting water, nutrients, and organic compounds in plants. However, in the realm of Java programming, Xylem, and Phloem take on a whole new meaning – they become fascinating numerical concepts worth exploring.

## What are Xylem and Phloem Numbers

In the realm of Java programming, moreover, Xylem numbers are a unique set of integers that possess specific properties. These numbers satisfy certain rules that distinguish them from ordinary integers. We’ll explore the fundamental properties of Xylem numbers and examine various examples to grasp their characteristics better.

### What is Phloem Numbers?

Similar to their botanical counterparts, in the realm of Java programming, Phloem numbers constitute another set of intriguing integers. These numbers possess distinct properties and rules that set them apart from conventional integers. We’ll delve into the fascinating world of Phloem numbers, while understanding their core characteristics through illustrative examples.

## Java code is a program to determine whether a given number is a Xylem number or a Phloem number.

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```import java.util.*;
import java.io.*;
public class XylemPhloemEx
{
public static void main(String args[])
{
//the variable extreme_sum stores the sum of extreme digits
//the variable mean_sum stores the sum of mean digits
int num, ex_sum = 0, mn_sum = 0, n;
Scanner sc= new Scanner (System.in);
System.out.print("Enter a number: ");
//reading an integer from the user
num = sc.nextInt();
//finds the absolute value of the given number
num = Math.abs(num);
//copying the given number into n
n = num;
//the while loop executes until the specified condition becomes false
while(n != 0)
{
//returns true if one of the conditions is true
if(n == num || n < 10)
//finds the last digit and add it to the variable extreme_sum
ex_sum = ex_sum + n % 10;
else
//finds the mean digits and add it to the variable mean_sum
mn_sum = mn_sum + n % 10;
//removes the last digit from the number
n = n / 10;
}
System.out.println("The sum of extreme digits: " + ex_sum );
System.out.println("The sum of mean digits: " + mn_sum);
//comparing the sum of extreme digits and with the sum of mean digits
if(ex_sum  == mn_sum)
//prints if sums are equal
System.out.println(num + " is a xylem number.");
else
//prints if sums are not equal
System.out.println(num + " is a phloem number.");
}
} ```

Explanation of the code:
It calculates the sum of the extreme digits and the sum of the mean digits in the given number, and subsequently compares them to make this determination. Here’s a step-by-step explanation of the code:

1. `import java.util.*;` and `import java.io.*;`: These are import statements to include necessary classes for input/output and using the `Scanner` class for user input.

2. `public class XylemPhloemEx`: This line defines a public class named `XylemPhloemEx`, which is the main class for this Java program.

3. `public static void main(String args[])`: This line defines the main method, which is the entry point of the Java program.

4. Inside the `main` method, the following variables are declared:

– `num`: It stores the user-input number.

– `ex_sum`: It stores the sum of the extreme digits of the given number.

– `mn_sum`: It stores the sum of the mean digits of the given number.

– `n`: It is used to hold a copy of the original number for processing.

5. `Scanner sc= new Scanner (System.in);`: A new `Scanner` object is created to read user input.

6. `System.out.print(“Enter a number: “);`: This line displays a prompt, thereby asking the user to enter a number.

7. `num = sc.nextInt();`: The user-entered number is read using the `nextInt()` method of the `Scanner` class and stored in the variable `num`.

8. `num = Math.abs(num);`: The absolute value of the given number is calculated to ensure that we work with positive numbers only.

9. `n = num;`: The value of `num` is copied into `n` to be used for processing.

10. The while loop continues executing until ‘n’ becomes 0, and in each iteration, it performs the following steps:

– If `n` is equal to the original `num` (first iteration) or less than 10 (last digit), it means it’s an extreme digit.

– The last digit is obtained using `n % 10` and added to `ex_sum`.

– Otherwise, it’s a mean digit.

– The last digit is obtained using `n % 10` and added to `mn_sum`.

– The last digit is removed from the number by dividing `n` by 10 (`n = n / 10`).

11. The program prints the sums of extreme digits (‘ex_sum’) and mean digits (‘mn_sum’) after the loop.

12. The code then compares the sum of extreme digits (`ex_sum`) with the sum of mean digits (`mn_sum`) to determine if the number is a Xylem number or a Phloem number.

13. If the sums are equal, it prints that the number is a Xylem number. Otherwise, it prints that the number is a Phloem number.

In summary, the code reads an integer from the user, calculates the sum of the extreme and mean digits in the given number, and then determines whether it is a Xylem number or a Phloem number based on the comparison of the two sums.

#### Output:

``````Enter a number: 1235
The sum of extreme digits: 6
The sum of mean digits: 5
1235 is a phloem number.``````

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``````Enter a number: 825122
The sum of extreme digits: 10
The sum of mean digits: 10
825122 is a xylem number.``````

## 10 Tips and Tricks about Xylem and Phloem Numbers

1. Understanding Xylem and Phloem Numbers:

Before diving into the code, grasp the concept of Xylem and Phloem numbers. Xylem numbers are those in which the sum of the extreme digits (first and last digits) is equal to the sum of the mean digits (all digits except the first and last). Phloem numbers, on the other hand, have distinct sums for extreme and mean digits.

2. Implement the Absolute Value:

To ensure accurate calculations, always convert the user-input number into its absolute value using `Math.abs(num)`. This step ensures that the algorithm works seamlessly with both positive and negative integers.

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3. Loop and Digit Extraction:

Use a loop to extract individual digits from the number for further processing. A while loop with modulo and division operations can help you isolate each digit.

4. Organize Code into Methods:

To enhance code readability and maintainability, encapsulate the Xylem and Phloem number logic into separate methods. Additionally, this approach enables reusability and makes the main method more concise.

5. Test with Various Test Cases:

Always test your code with different test cases to ensure its accuracy and robustness. Include positive, negative, single-digit, and multi-digit numbers to cover a wide range of scenarios.

6. Optimize for Efficiency:

While implementing the algorithm, consider ways to optimize the code for efficiency. Analyze the time complexity of your approach and look for potential improvements.

7. Handle Corner Cases:

Pay special attention to corner cases, such as single-digit numbers, which can have specific outcomes and may require additional conditional handling.

8. Use Descriptive Variable Names:

Choose meaningful variable names that reflect the purpose of each variable. Clear and descriptive names enhance code readability in addition makes it easier to understand the logic.

Document your code with comments to explain the logic and any complex calculations. Clear documentation helps other developers (and your future self) understand the code better.

10. Explore Further Applications:

Look for other interesting applications of Xylem and Phloem numbers beyond the basic sum comparison. For example, you can extend the concept to handle different digit positions or create unique patterns based on these numbers.

By mastering these tips and tricks, you’ll confidently unlock the potential of these intriguing numerical concepts in your Java programming endeavors.

In conclusion, the journey through Xylem and Phloem numbers in Java has been nothing short of enlightening. Armed with a deeper understanding of these unique numerical patterns and their implementation, furthermore you can now infuse the beauty of natural concepts into your Java projects. We hope our blog on “Xylem and Phloem Number in Java” was useful and informative. For more coding related blogs and online coding courses visit our website Newtum’s. Happy coding!