Star Concentric Diamond
This program prints concentric diamond patterns using stars.
Problem Statement
Write a Java program that prints concentric diamond patterns of stars with 7 rows.
Source Code
| 1 | public class StarConcentricDiamond { |
| 2 | public static void main(String[] args) { |
| 3 | int n = 7; |
| 4 | for(int i=0; i<n; i++) { |
| 5 | for(int j=0; j<n; j++) { |
| 6 | int min = Math.min(Math.min(i, j), Math.min(n-1-i, n-1-j)); |
| 7 | if(min%2==0) System.out.print("* "); |
| 8 | else System.out.print(" "); |
| 9 | } |
| 10 | System.out.println(); |
| 11 | } |
| 12 | } |
| 13 | } |
Program Output
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Explanation
The distance min from the border is computed for each cell, and the condition min%2==0 alternates between printing stars and spaces, creating alternating concentric diamond-like layers.