Java Star Pattern 5

Posted in Java Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 300 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

Java Star Pattern 5

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=i; j<5; j++)
    System.out.print(" ");
   for(k=1; k<i*2; 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 starts by defining a class named Demo.
Inside the Demo class, there is a main method, which serves as the entry point of the program.
Three integer variables i, j, and k are declared. These variables will be used in controlling loops and printing the pattern.
The outermost loop, for(i=1; i<=5; i++), is responsible for controlling the number of rows in the pattern. It runs from i=1 to i=5.
Inside this outer loop, there are three nested loops:
- The first inner loop, for(j=i; j<5; j++), prints spaces before the stars. It starts with j equal to the current value of i and runs until j is less than 5. This loop decreases the number of spaces printed on each line as i increases.
- The second inner loop, for(k=1; k<i*2; k++), prints asterisks (*). The number of asterisks printed on each line depends on the value of i, where it prints i*2 asterisks. As i increases, the number of asterisks also increases.
- After both inner loops finish, a System.out.println(); statement is used to move to the next line, creating a new row in the pattern.
The program continues to execute the outer loop until i reaches 5. As a result, it will print a right-angled triangle pattern with increasing numbers of asterisks on each line and decreasing spaces before the asterisks.

💯 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!