Java Star Pattern 4

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 280 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Star Pattern 4

Here`s a program that prints the above star 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=1; j<i; j++)
    System.out.print(" ");  
   for(k=5; k>=i; k--)
    System.out.print("*");
   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:

The program defines a public class named Demo.
Inside the class, there is a main method, which is the entry point for the program.
Three integer variables i, j, and k are declared to be used as loop counters.
The outer loop (for(i=1; i<=5; i++)) runs from i = 1 to i = 5. This loop controls the number of lines in the pattern. Each iteration of this loop corresponds to a new line in the output.
Within the outer loop, there are two nested loops:
- The first nested loop (for(j=1; j<i; j++)) is responsible for printing spaces before the asterisks. It runs from j = 1 to j = i - 1. The number of spaces printed on each line is determined by the value of i.
- The second nested loop (for(k=5; k>=i; k--)) is responsible for printing asterisks. It runs from k = 5 down to k = i. The number of asterisks printed on each line is also determined by the value of i.
Inside the first nested loop, spaces are printed using System.out.print(" "). The print method is used to print without moving to the next line, so spaces are printed side by side.
Inside the second nested loop, asterisks are printed using System.out.print("*"). Again, the print method is used to print asterisks side by side.
After both nested loops have completed their iterations for a particular value of i, a newline character is printed using System.out.println(). This moves to the next line for the next iteration of the outer loop, creating the pattern.
The outer loop continues to run until i reaches 5, at which point the program terminates.

💯 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 star 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!