Access Properties Properties is simplified version of a Map implementation where the key and
value are String objects. Properties extends Hashtable implementation to exhibit Map behavior.
The following example shows instantiating and accessing Properties,
package com.bethecoder.tutorials.utils.props; import java.util.Enumeration; import java.util.Iterator; import java.util.Properties; public class IterateProps { /** * @param args */ public static void main ( String [] args ) { Properties prop = new Properties () ; prop.setProperty ( "ONE" , "111111" ) ; prop.setProperty ( "TWO" , "222222" ) ; prop.setProperty ( "THREE" , "333333" ) ; prop.setProperty ( "FOUR" , "444444" ) ; System.out.println ( prop.getProperty ( "ONE" )) ; System.out.println ( prop.getProperty ( "TWO" )) ; System.out.println ( "------------------------" ) ; Enumeration<?> enu = prop.propertyNames () ; String key; String value; while ( enu.hasMoreElements ()) { key = enu.nextElement () .toString () ; value = prop.getProperty ( key ) ; System.out.println ( key + "==" + value ) ; } System.out.println ( "------------------------" ) ; Iterator<String> it = prop.stringPropertyNames () .iterator () ; while ( it.hasNext ()) { key = it.next () ; value = prop.getProperty ( key ) ; System.out.println ( key + "==" + value ) ; } } }
111111
222222
------------------------
TWO==222222
ONE==111111
FOUR==444444
THREE==333333
------------------------
TWO==222222
ONE==111111
FOUR==444444
THREE==333333
