下列程序的功能是统计字符串中“array”的个数，在程序的空白处应填入的正确选项是 public class FindKeyWords{ public static void main(sring[] args){ sting text= “ An array is a data structur that stores a collection of” + “values of the same type . You access each individual value” + “through an integer index . For example,if a is an array” + “of inergers, then a[i] is the ith integer in the array.”; Int arrayCount =0; Int idex = -1; Sting arrarStr =”array”; Index = text.indexof(arrayStr); While(index 0) { ++arrayCount; Index += arrayStr.length(); Index = text.indexof(arrayStr,index); } System.out.println (“the text contains” + arrayCount + “arrays”); } }
A．<
B．=
C．<=
D．>=