java - 帕斯卡三角形定位

Question

我编写了一个打印出帕斯卡三角形的 Java 程序，但是我不知道如何正确定位它。

方案1

public class Triangle {
    public static void main() {
        System.out.println("\nTriangle: ");
        int row = 11;
        long[][] triangle = new long[row][row];
        triangle[1][1] = 1;
        System.out.print(triangle[1][1] + "\n");

        for (int i = 2; i < row; i++) {
            for (int n = 1; n < row; n++) {
                triangle[i][n] = triangle[i-1][n-1] + triangle[i-1][n];
                if (triangle[i][n] > 0) {
                    System.out.print(triangle[i][n] + " ");
                }
            }
            System.out.println();
        }
    }
}

输出:

1
1 1 
1 2 1 
1 3 3 1 

方案2

public class Triangle {
    public static void main() {
        System.out.println("\nTriangle: ");
        int row = 11;
        long[][] triangle = new long[row][row];
        int x = 1;
        while (x < row - 1) {
            System.out.print(" ");
            x++;
        }
        triangle[1][1] = 1;
        System.out.print(triangle[1][1] + "\n");

        for (int i = 2; i < row; i++) {
            x = i;
            while (x < row - 1) {
                System.out.print(" ");
                x++;
            }
            for (int n = 1; n < row; n++) {
                triangle[i][n] = triangle[i-1][n-1] + triangle[i-1][n];
                if (triangle[i][n] > 0) {
                    System.out.print(triangle[i][n] + " ");
                }
            }
            System.out.println();
        }
    }
}

输出:

     1
    1 1 
   1 2 1 
  1 3 3 1 
 1 4 6 4 1 
1 5 10 10 5 1 //(Notice this line is incorrectly positioned)

当三角形接近多位数字时，它开始破裂并使其变得丑陋。有人可以解释一下如何显示一个正常的三角形而不是这个丑陋的三角形吗？

Answer 1

动态帕斯卡三角生成器在这里:

import java.io.IOException;
import java.util.Scanner;

public class Main {
    static double fact(int n) {
        double result = 1;
        for (double i = 1; i <= n; i++)
            result *= i;
        return result;
    }

    static double combine(int n, int r) {
        return ((fact(n)) / (fact(n - r) * fact(r)));
    }

    static void pascalTriangle(int n) {
        int n2 = n;
        for (int i = 0; i < n; i++) {
            for (int space = 8 * (n2 - 1); space >= 0; space--) {
                System.out.printf(" ");
            }
            for (int j = 0; j <= i; j++) {
                System.out.printf("%14.0f", combine(i, j));
                System.out.printf("  ");
            }
            System.out.println();
            n2--;
        }
    }

    public static void main(String[] args)
            throws IOException, InterruptedException {
        @SuppressWarnings("resource")
        Scanner sc = new Scanner(System.in);

        System.out.print("Enter Number of Lines(n): ");
        int n = sc.nextInt();
        pascalTriangle(n);
        System.out.println("Press any key to exit! ");
        sc.nextByte();
    }
}