string.trim().length()的用法
1 public class Test{ 2 public static void main(String args[]){ 3 String data = " a bc "; 4 //调用string中的方法trim().length()方法 5 int trim = data.trim().length(); 6 System.out.println("the trim length is "+trim); 7 8 int length = data.length(); 9 System.out.println("the length is "+length); 10 } 11 }
显示:
the trim length is 4
the length is 8
trim()方法的作用是去掉字符串头尾的空格
好记性不如烂键盘