class is an extension of
Hashtable that allows
key/value pairs to be read from and written to a stream. The
Properties class implements the system properties
list, which supports user customization by allowing programs to look
up the values of named resources. Because the
store( ) methods provide an easy
way to read and write properties from and to a text stream, this
class provides a convenient way to implement an application
When you create a
Properties object, you may
Properties object that contains
default values. Keys (property names) and values are associated in a
Properties object with the
put( ). Values
are looked up with
getProperty( ); if this method
does not find the key
Properties object, it looks in the default
Properties object that was passed to the
constructor method. A default value can also be specified, in case
the key is not found at all. Use
setProperty( ) to
add a property name/value pair to the
object. This Java 1.2 method is preferred over the inherited
put( ) method because it enforces the constraint
that property names and values be strings.
propertyNames( ) returns an
enumeration of all property names (keys) stored in the
Properties object and (recursively) all property
names stored in the default
associated with it.
list( ) prints the properties
stored in a
Properties object, which can be useful for debugging. ...
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