PascalsTriangle2.java

package chp4; public class PascalsTriangle2 { public static void main(String[] args){printTriangle(findTriangle(15));}public static void printTriangle(int[][] triangle){int rows = triangle.length;	for(int i = 0; i<triangle.length; i++){printSpace(i, rows);for(int j = 0; j<triangle[i].length; j++){for(int k = 1; k<=4-Integer.toString(triangle[i][j]).length(); k++) {System.out.print(" ");}System.out.print(triangle[i][j]);System.out.print(" ");}System.out.println();}}public static int[][] findTriangle(int rows){int[][] triangle = new int[rows][];triangle[0]=new int[1];triangle[0][0]=1;triangle[1]=new int[2];triangle[1][0]=1;triangle[1][1]=1;for(int i=2; i<rows; i++){triangle[i]=new int[i+1];triangle[i][0]=1;for(int j=1; j<i; j++){triangle[i][j]=triangle[i-1][j-1]+triangle[i-1][j];}triangle[i][i]=1;}return triangle;}public static void printSpace(int row, int rows){for(int i = 1; i<=rows-row-1; i++){System.out.print("   ");}if(row!=rows){System.out.print("  ");}}}