String 类的去空格和分割功能

String trim () :去掉字符串两端的空格

String [] split (String str):按照指定符号分割字符串

 

 

Code：

String s1 = "helloworld";

String s2 = " helloworld ";

System.out.println(s1.trim());  //helloworld

System.out.println(s2.trim());  //helloworld

 

String s4 = "aa,bb,cc,dd";

String [] strarray = s4.split(",");  //根据，分割字符串

for (int x=0;x<strarray.length;x++) {  //遍历数组

System.out.println(strarray[x]);

}