以下哪些语句实现了声明一个二维整数数组?
A. int a[][]=new int[10,10];
B. int a[][]=new int[10][10];
C. int a[10,10]=new int[10][10];
D. int [][]a=new int[10][10];
E. int []a[]=new int[10][10];
以下哪些语句用于初始化一个数组?
A. int dayhigh={24,23,24,25,25,23,21};
B. int dayhigh[]={24,23,24,25,25,23,21};
C. int []dayhigh={24,23,24,25,25,23,21};
D. int dayhigh[]=new int{24,23,24,25,25,23,21};
E. int dayhigh=[24,23,24,25,25,23,21];