DiagonalStar.java

package com.TimBuchalka;
//Write a method named printSquareStar with one parameter of type int named number. If number is < 5, the method
//should print "Invalid Value". The method should print diagonals to generate a rectangular pattern composed of
//stars (*). This should be accomplished by using loops (see examples below).
//
//EXAMPLE 1
//printSquareStar(5); should print the following:
//*****
//** **
//* * *
//** **
//*****
//
//Explanation:
//*****   5 stars
//** **   2 stars space 2 stars
//* * *   1 star space 1 star space 1 star
//** **   2 stars space 2 stars
//*****   5 stars
//
//EXAMPLE 2
//printSquareStar(8); should print the following:
//********
//**    **
//* *  * *
//*  **  *
//*  **  *
//* *  * *
//**    **
//********
//
//The patterns above consist of a number of rows and columns (where number is the number of rows to print). For
//each row or column, stars are printed based on four conditions (Read them carefully):
//* In the first or last row
//* In the first or last column
//* When the row number equals the column number
//* When the column number equals rowCount - currentRow + 1 (where currentRow is current row number)

public class DiagonalStar {

    public static void printSquareStar(int number){
        if( number < 5) {
            System.out.println("Invalid number");
            return;
        }

        for (int row = 1; row <= number; row++){
            for (int col = 1; col <= number; col++){
                if (row == 1 || row == number || col == 1 || col == number){
                    System.out.print("*");
                } else if (row == col) {
                    System.out.print("*");
                } else if (col == (number - row + 1)) {
                    System.out.print("*");
                } else
                    System.out.print(" ");
            }// close inner loop
            System.out.println();

        }// close outter loop
    }
}