Click here to watch in Youtube :
https://www.youtube.com/watch?v=hyPnVZSukyY&list=UUhwKlOVR041tngjerWxVccw
db.properties
Java Tutorial: Properties class in java [How to get the keys using propertyNames method] |
import java.io.FileReader; import java.io.IOException; import java.util.Enumeration; import java.util.Properties; /* * public Enumeration<?> propertyNames() * * Returns: * -------- * * an enumeration of all the keys in this property list, * including the keys in the default property list. */ class PropertiesDemo { public static void main(String[] args) throws IOException { FileReader fileReader = null; try { fileReader = new FileReader("db.properties"); Properties p = new Properties(); /* * Reads a property list (key and element pairs) * from the input character stream in a simple * line-oriented format. */ p.load(fileReader); /* * Returns an enumeration of all the keys in * this property list, including distinct keys * in the default property list if a key of the * same name has not already been found from the * main properties list. */ Enumeration<?> enumeration = p.propertyNames(); while (enumeration.hasMoreElements()) { String key = (String) enumeration.nextElement(); String value = p.getProperty(key); System.out.println("Key = " + key + " , Value = " + value); } } finally { if (fileReader != null) { fileReader.close(); } } } }Output
Key = user , Value = root Key = password , Value = oracleClick the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/PropertiesDemo_propertyNames_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/PropertiesDemo_propertyNames_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/fecc858ed896ce9bbf3cb92f5d438fc2de9eee22/BasicJava/PropertiesDemo_propertyNames_App/?at=master
See also:
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