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Logging APIs

Use Java Logging to track what's happening in a Java bill splitting application.

Diese Übung ist Teil des Kurses

Data Types and Exceptions in Java

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Anleitung zur Übung

  • Add the import statement with the package containing Java's logging capability.
  • Create an Logger object from the Logger class and name it after the class it is in.
  • Log the bill amount for each person as computed in computeEachBill() with log level INFO.
  • Log the exception when the number of persons entered is not positive in the catch block of computeEachBill() with log level SEVERE.

Interaktive Übung

Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.

// Import the package containing Java's logging capability
import ____.____.____.*;

public class SplitTheBill {

	// Get a Logger object named for the class
    private static Logger logger = Logger.____("____");

    public static void main(String[] args) {
    	computeEachBill (150, 5);
        computeEachBill(100, 0);
    }

    public static void computeEachBill(int bill, int people){
        try {
            int ea = bill/people;
            // Add a log entry, at INFO level, with the bill for each person
	        logger.____(Level.____, "Bill for each person is: " + ea);
        } catch (ArithmeticException e) {
        	// Add a log entry, at SEVERE level, that the people splitting must be positive
            logger.____(Level.____, "You forgot to provide a positive number of people for splitting: " + bill);
        }
    }
}
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