以下程序:
class="java" name="code">String str1 = "a,b,,,,";
System.out.println("String length is: " + str1.split(",").length);
String str2 = "a,b,,,,c";
System.out.println("String length is: " + str2.split(",").length);
?输出:
String length is: 2 String length is: 6
?