Pyramid.java

import java.util.Scanner;

/**
 * Created by Ryan on 9/26/2014.
 */
public class Pyramid {
    public static void main(String[] args) {

        Scanner input;
        int value,n;

        input = new Scanner(System.in);

        System.out.println("Enter the number of rows:");
        value = input.nextInt();

        for(int i = 0; i < value; i++){
                //print spaces in front of the numbers
                for (int s = 0; s < value - 1 - i; s++){
                    System.out.print("   ");
                }

                //n as the first number in the line; decrease until they reach 1 in the middle.
                n = i+1;
                while (n > 1){
                    if (n < 10) {
                        System.out.print(" "+ n + " ");
                    }else{
                        System.out.print(n + " ");
                    }
                    n--;
                }

                //numbers increase until reach the input value
                while(n <= i+1){
                    if (n<10) {
                        System.out.print(" " + n + " ");
                    }else{
                        System.out.print(n + " ");
                    }
                    n++;
                }

                System.out.println();
            }
        }
    }