--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/luan/host/Log4j.java	Sun Jan 28 21:36:58 2018 -0700
@@ -0,0 +1,18 @@
+package luan.host;
+
+import org.apache.log4j.Logger;
+import org.apache.log4j.Level;
+import org.apache.log4j.PatternLayout;
+import org.apache.log4j.ConsoleAppender;
+
+
+public final class Log4j {
+
+	public static void initForConsole() {
+		Logger.getRootLogger().setLevel(Level.INFO);
+		PatternLayout layout = new PatternLayout("%d %-5p %c - %m%n");
+		ConsoleAppender appender = new ConsoleAppender(layout,"System.err");
+		Logger.getRootLogger().addAppender(appender);
+	}
+
+}