阅读以下说明和Java 码，将应填入(n)处的字名写在的对应栏内。

[说明] 打印输出10行杨晖三角形。形式如下：

杨晖三角形：

1

1 1

1 2 1

1 3 3 1

1 4 6 4 1

1 5 10 10 5 1

1 6 15 20 15 6 1

1 7 21 35 35 21 7 1

1 8 28 56 70 56 28 8 1

1 9 36 84 126 126 84 36 9 1

class yanghui

{

public static void main (String args [] )

{

int i, j;

(1)

int yanghui [] [];

System. out. println( “杨晖三角形：” );

yanghui = new int [ yhleve1] [];

for(i =0;i ＜ yanghui, length; i + + )

yanghui[i] = new int [i + 1];

(2)

for((3))

{

yanghui [i] [0] = 1;

for(j = 1 ;j ＜ yanghui[i], length - 1 ;j + + )

yanghui[i] [j] = yanghui[i - 1] [j - 1] + yanghui[i - 1] [j];

yanghui[i] [yanghui[i]. length - 1 ] = 1;

}

for ( i=0; i ＜ yanghui. length; i + + )

{

for(j =0;j ＜ yanghui[i]. length; j + + )

(4)

System. out. println( );

}

}

}