Preview:
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        pattern(5);

}
    static void pattern(int n) {
        for (int i = 0; i <= n; i++) {
            for (int j = n; j >= i; j--) {
                System.out.print("*");
            }
            System.out.println();

        }

    }
}
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