代码如下:
import java.util.*;
public class FindGroup
{
public static void main(String[] args){
Matcher m = Pattern.compile("\\w+")
.matcher("java is very easy");
while(m.find()){
System.out.println(m.group());
}
int i = 0;
while(m.find(i)){
System.out.print(m.group() + "\t");
i++ ;
}
}
}
编译结果如下: