java-basic-program/StarPattern.java at main · mhd-haarish07/java-basic-program · GitHub

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public class StarPattern {
    public static void main(String[] args) {
        int rows = 5;

        System.out.println("Pyramid Pattern:");
        printPyramid(rows);

        System.out.println("\nInverted Pyramid Pattern:");
        printInvertedPyramid(rows);
    }

    static void printPyramid(int rows) {
        for (int i = 1; i <= rows; i++) {
            for (int j = 1; j <= rows - i; j++) {
                System.out.print(" ");
            }
            for (int k = 1; k <= (2 * i - 1); k++) {
                System.out.print("*");
            }
            System.out.println();
        }
    }

    static void printInvertedPyramid(int rows) {
        for (int i = rows; i >= 1; i--) {
            for (int j = 1; j <= rows - i; j++) {
                System.out.print(" ");
            }
            for (int k = 1; k <= (2 * i - 1); k++) {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}