//用户输入打印的杨辉三角的行数line,输出：打印杨辉三角（每个数字的宽度是4.）
package printPascalTriangle2;

import java.util.Scanner;

public class PrintPascalTriangle2 {

	
	public static void main(String[] args) {
		
		Scanner console = new Scanner(System.in);
		System.out.print("input the lines > 1:");
		int line = console.nextInt();
		
		printNext(line);
		

	}
	
	public static void printNext(int line)
	{
		//计算数值
		int [][]s =new int[line][line];
		 for(int i=0;i <= line-1;i++)
		 {
		    for(int j = 0;j <= i;j++) 
		    {
			   if(j==0||j==i)
			     s[i][j]=1;
			   else
			     s[i][j] = s[i-1][j-1] + s[i-1][j];
			}
		   
		 }
		 //打印
		  for(int i=0;i <= line-1;i++)
		 {
		    for(int j = 1;j <= (line-i-1) * 2;j++)
		       System.out.print(" ");
		    for(int k = 0;k <= i;k++) 
	  		    System.out.printf("%4d",s[i][k]);
		    System.out.println();
		 }
	}

}//class