Tutorials : Simplify Your Java Configurations :

A Rich Interface

 
int dayInt = config.getInt("day");

Useful information. The error messages are easy to understand, so you can find the source of the error with no problem.

Here's a list of the supported data types:

• BigDecimal
• BigInteger
• boolean
• byte
• double
• float
• int
• long
• short
• String

List ages = config.getList("ages");

. . .
DataConfiguration data = new DataConfiguration(config);
int[] iAges = data.getIntArray("ages");
. . .

You may acquire all parameters in a configuration by using the config.getKeys() method. It returns an Iterator, so here's a method that will print out all parameters and their values:

public static void listProperties(Configuration config) {
  Iterator it = config.getKeys();
  System.out.println("*** Contents of configuration object: " +
  config.getClass().getName());
  while (it.hasNext()) {
    String key = (String) it.next();
    Object item = config.getProperty(key);
    if (item instanceof List) {
      System.out.println(key + "=" + config.getList(key));
    } else {
      System.out.println(key + "=" + config.getString(key));
    }
  }
}

age = 62
ages = 12, 13, 21, ${age}

. . .
age = 62
ages = 12, 13, 21, ${age}
include = xtra.properties
. . .

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