Java program to print following palindrome pyramid pattern using for loop.
1
121
12321
1234321
123454321
12345654321
Java program to print palindrome pyramid pattern
package com.tcc.java.programs;
import java.util.Scanner;
public class NumberPyramid {
public static void main(String[] arg) {
int rows, i, space, star = 1;
Scanner scanner = new Scanner(System.in);
System.out.println("Enter Number of Rows of Pyramid Pattern");
rows = scanner.nextInt();
// printing one row in every iteration
for (i = 1; i <= rows; i++) {
// Printing spaces
for (space = 1; space <= rows - i; space++) {
System.out.print(" ");
}
// Printing stars
while (star <= (2 * i - 1)) {
System.out.print(-Math.abs(star - i) + i);
star++;
}
star = 1;
// move to next row
System.out.print("\n");
}
}
}
Output
Enter Number of Rows of Pyramid Pattern
6
1
121
12321
1234321
123454321
12345654321
