转自 ：http://www.cnblogs.com/fsjohnhuang/p/4098623.html
package regex;
public class GetSingleString
{
public static void main(String[] args)
{
String s="aaaa bbbb cccc";
String[] split = s.split("\\s+");
System.out.println(split.length);
for(String each : split )
{
System.out.println( each ) ;
}
}
}