MyApp example 1/2

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import com.foo.Bar;

// Import log4j classes.
import org.apache.log4j.Logger;
import org.apache.log4j.BasicConfigurator;

public class MyApp {

  // Define a static logger variable so that it references
  // the Logger instance named "MyApp".
  static Logger logger = Logger.getInstance(MyApp.class);

  public static void main(String[] args) {

    // Set up a simple configuration that logs on the console.
    BasicConfigurator.configure();

    logger.info("Entering application.");
    Bar bar = new Bar();
    bar.doIt();
    logger.info("Exiting application.");
  }
}

MyApp begins by importing log4j related classes. It then defines a static logger variable with the name MyApp which happens to be the fully qualified name of the class.

MyApp uses the Bar class defined in the package com.foo.

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