Explanation/Reference:
Explanation: A properties file is a simple text file. You can create and maintain a properties file with just
about any text editor.
You should always create a default properties file. The name of this file begins with the base name of your
ResourceBundle and ends with the .properties suffix. In the PropertiesDemo program the base name is
LabelsBundle. Therefore the default properties file is called LabelsBundle.properties. The following
examplefile contains the following lines:
# This is the default LabelsBundle.properties file
s1 = computer
s2 = disk
s3 = monitor
s4 = keyboard
Note that in the preceding file the comment lines begin with a pound sign (#). The other lines contain key-
value pairs. The key is on the left side of the equal sign and the value is on the right. For instance, s2 is the
key that corresponds to the value disk. The key is arbitrary. We could have called s2 something else, like
msg5 or diskID. Once defined, however, the key should not change because it is referenced in the source
code. The values may be changed. In fact, when your localizers create new properties files to
accommodate additional languages, they will translate the values into various languages.