以下这段代码的圈复杂度为()    代码段如下:...
以下这段代码的圈复杂度为()
代码段如下:
public String case2(int index, String string) {
String returnString = null
if (index < 0) {
throw new IndexOutOfBoundsException("exception <0 ")
}
if (index == 1) {
if (string.length() < 2) {
return string
}
returnString = "returnString1"
} else if (index == 2) {
if (string.length() < 5) {
return string
}
returnString = "returnString2"
} else {
throw new IndexOutOfBoundsException("exception >2 ")
}
return returnString
}