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import java.util.logging.Level;
import java.util.logging.Logger;
public class Main {
private static Logger
lgr = Logger.getLogger("com"),
lgr2 = Logger.getLogger("com.java2s"),
util = Logger.getLogger("com.java2s.util"),
test = Logger.getLogger("com.java2s.test"),
rand = Logger.getLogger("random");
private static void logMessages() {
lgr.info("com : info");
lgr2.info("com.abc : info");
util.info("util : info");
test.severe("test : severe");
rand.info("random : info");
}
public static void main(String[] args) {
lgr.setLevel(Level.SEVERE);
System.out.println("com level: SEVERE");
logMessages();
util.setLevel(Level.FINEST);
test.setLevel(Level.FINEST);
rand.setLevel(Level.FINEST);
System.out.println("individual loggers set to FINEST");
logMessages();
lgr.setLevel(Level.SEVERE);
System.out.println("com level: SEVERE");
logMessages();
}
}
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