Error: cannot find symbol (JAVA) No sè el por què me da error al compilar el siguiente codigo.
public class HelloWorld{
public static void main(String []args){
Pattern pattern = Pattern.compile("here");
Matcher matcher = pattern.matcher("input here");
while (matcher.find()) {
System.out.println(matcher.group());
}
}
}
ERROR
^
symbol: class Pattern
location: class HelloWorld
HelloWorld.java:4: error: cannot find symbol
Pattern pattern = Pattern.compile("here");
^
symbol: variable Pattern
location: class HelloWorld
HelloWorld.java:5: error: cannot find symbol
Matcher matcher = pattern.matcher("input here");
^
symbol: class Matcher
location: class HelloWorld
3 errors
sh-4.3$ ^C
A que se debe el error?
Gracias.
