Java语言使用二维数组打印一个 10 行杨辉三角

/*使用二维数组打印一个 10 行杨辉三角.
1
1 1
1 2 1
1 3 3  1
1 4 6  4  1
1 5 10 10 5 1
......
*/
public class TestArrayYangHui {
    public static void main(String[] args) {
        
        
        int[][] Yanghui = new int[10][];
        for (int i = 0; i < Yanghui.length; i++) {
            // 初始化数组
            Yanghui[i] = new int[i + 1];
        }
        
        // 显示地为数组每个元素赋值
        for (int i = 0; i < Yanghui.length; i++) {
            for (int j = 0; j < Yanghui[i].length; j++) {
//                if(j == 0 || j == i) {
//                    Yanghui[i][j] = 1;
//                }
                Yanghui[i][0]=Yanghui[i][i]=1;
                
                
                if(i >= 2 && j >= 1 && j < i) {
                    Yanghui[i][j] = Yanghui[i - 1][j - 1] + Yanghui[i - 1][j];
                }
            }
        }
        
        // 遍历二维数组
        for (int i = 0; i < Yanghui.length; i++) {
            for (int j = 0; j < Yanghui[i].length; j++) {
                System.out.print(Yanghui[i][j] + "\t");
            }
            System.out.println();
        }
    }
}

 输出结果如下：