Java Star Pattern 8

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 238 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Star Pattern 8

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=5; i>=1; i--)
  {
   for(j=5; j>=1; j--)
   {
    if(i == j)
     System.out.print("*");
    else
     System.out.print(" ");
   }
   for(k=2; k<=5; k++)
   {
    if(i == k)
     System.out.print("*");
    else
     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 starts with the declaration of a class named "Demo."
Inside the class, there's a main method, which is the entry point for the program. It takes an array of strings args as its parameter but doesn't use it in this example.
Three integer variables, i, j, and k, are declared. These variables will be used as loop counters.
The outer loop (for(i=5; i>=1; i--)) runs from i=5 down to i=1. This loop controls the rows of the pattern.
Inside the outer loop, there are two nested loops:
- The first nested loop (for(j=5; j>=1; j--)) runs from j=5 down to j=1. This loop controls the columns on the left side of each row.
- The second nested loop (for(k=2; k<=5; k++)) runs from k=2 to k=5. This loop controls the columns on the right side of each row.
In both nested loops (j and k loops), there's an if-else condition to determine whether to print an asterisk () or a space. The condition if(i == j) checks if i and j are equal. If they are equal, an asterisk () is printed; otherwise, a space is printed. This same condition applies to both the j and k loops, but they operate on different sides of each row.
After printing either an asterisk or a space in each column for both sides of the row, a newline character (System.out.println()) is used to move to the next row.
The outer loop (i loop) repeats this process for each row, decrementing i in each iteration.

💯 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!