Java output triangle

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  1. It appears to be a request for a Java program that prints a triangle pattern.

    There are various ways to print a triangle in Java, but a common approach is to use nested loops. The number of rows in the triangle and the type of triangle (e.g., right-angled, equilateral) can vary. I'll provide an example for a simple right-angled triangle.

    Example: Right-Angled Triangle

    Here's a Java program to print a right-angled triangle:

    public class Triangle {
        public static void main(String[] args) {
            int rows = 5; // You can change this to print more/less rows
    
            for (int i = 0; i < rows; i++) {
                for (int j = 0; j <= i; j++) {
                    System.out.print("* ");
                }
                System.out.println();
            }
        }
    }
    

    In this example, the program prints a right-angled triangle with 5 rows of asterisks. The outer loop (for (int i = 0; i < rows; i++)) controls the number of rows, while the inner loop (for (int j = 0; j <= i; j++)) controls the number of asterisks per row.

    Variations

    1. Inverted Triangle: To print an inverted triangle, you would reverse the order of the asterisks.

    2. Centered Triangle: This involves calculating spaces before printing asterisks to center the triangle.

    3. Hollow Triangle: Involves printing asterisks only on the borders of the triangle.

    Each of these variations would require modifications to the loop conditions and the way asterisks and spaces are printed. The core concept remains the same, which is using nested loops to control the number of characters and rows.

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