Java Number Pattern 43

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 258 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Number Pattern 43

Here`s a program that prints the above number pattern using Java Programming:

Demo.java

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public class Demo
{
 public static void main(String[] args)
 {
  int i, j, k;
  for(i=1; i<=5; i++)
  {
   for(j=5; j>i; j--)
    System.out.print(" ");
   for(k=1; k<=i; k++)
    System.out.format("%2d", k);
   System.out.println();
  }
 }
}

💻 Testing the Program

When you run the above program, it will print the following output:

Output

🧠 How the Program Works

Let's break down the logic behind the code:

public class Demo: This line defines a class named Demo.
public static void main(String[] args): This is the main method where the program starts executing. It takes an array of strings args as input, although it's not used in this program.
int i, j, k;: Three integer variables i, j, and k are declared to be used in the loops.
for(i = 1; i <= 5; i++) {: An outer loop that iterates from i = 1 to i = 5, controlling the number of lines (rows) in the output.
for(j = 5; j > i; j--) {: An inner loop that iterates from j = 5 down to i + 1, controlling the number of spaces before the numbers on each line.
System.out.print(" ");: Inside the inner loop, a space character is printed, creating the indentation effect.
for(k = 1; k <= i; k++) {: Another inner loop that iterates from k = 1 up to k = i, controlling the numbers to be printed on each line.
System.out.format("%2d", k);: Inside the innermost loop, a formatted number is printed. The %2d specifier formats the integer k to take up at least 2 characters, adding a leading space if necessary.
System.out.println();: After the two inner loops, a newline is printed to move to the next line in the output.
The loops continue to execute, and the pattern repeats until the outer loop completes its iterations.

💯 Tips for Enhancement:

Explore the versatility of this pattern by adjusting its parameters. Whether you increase or decrease the size, tweak the spacing, or modify the characters used, each change opens up a world of possibilities, allowing you to customize and create your unique visual effects.

✔ Conclusion:

Creating visually appealing patterns is not only a fun endeavour but also a great way to enhance your programming or design skills. We hope this tutorial has inspired you to explore the world of creative coding. Share your creations with us, and let your imagination run wild!

🤗 Closing Call-to-Action:

We'd love to see your unique interpretations of the number pattern. Share your creations in the comments below, and don't hesitate to reach out if you have any questions or suggestions for future tutorials. Happy coding!