Number Pattern Programs in Java

Introduction:

Patterns are an interesting aspect of programming, often used to create visually appealing structures or to solve specific problems. In this blog post, we'll delve into a simple Java code snippet that generates a pattern using nested loops. Let's break down the code step by step to understand its functionality and explore the resulting pattern.

Understanding the Code:

public class Pattern {
    public static void main (String arg[]){
        for (int i=1; i<=4; i++) {
            for (int j=1; j<=i; j++)
                System.out.print(i + " ");
            System.out.println();
        }
    }
}

The outer loop, controlled by the variable `i`, runs from 1 to 4. This loop controls the number of rows in our pattern. The inner loop, controlled by the variable `j`, runs from 1 to the current value of `i`. It determines how many times a particular number will be printed in a row.

Pattern Generation:

Let's see what happens in each iteration of the loops:

• In the first iteration (i=1), the inner loop runs once, printing "1 " (1 followed by a space).
• In the second iteration (i=2), the inner loop runs twice, printing "2 2 " (2 followed by a space, twice).
• In the third iteration (i=3), the inner loop runs three times, printing "3 3 3 " (3 followed by a space, three times).
• In the fourth iteration (i=4), the inner loop runs four times, printing "4 4 4 4 " (4 followed by a space, four times).

Output:

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