Friday, 24 February 2017

Java Tutorial: Properties class in java | Java properties tutorial


Click here to watch in Youtube :
https://www.youtube.com/watch?v=8GU6d2560F4&list=UUhwKlOVR041tngjerWxVccw

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Java Tutorial: Properties class in java | Java properties tutorial 
db.properties
Java Tutorial: Properties class in java | Java properties tutorial 
PropertiesDemo.java
import java.io.FileReader;
import java.io.IOException;
import java.util.Properties;

/*
 * public String getProperty(String key)
 *
 * Parameters:
 * ----------
 *
 * key - the property key.
 *
 * Returns:
 * -------
 *
 * the value in this property list with the specified
 * key value.
 */
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);

            /*
             * Searches for the property with the specified
             * key in this property list.
             */
            String user = p.getProperty("user");
            String password = p.getProperty("password");

            System.out.println("user = "+user);
            System.out.println("password = "+password);
        }
        finally
        {
            if (fileReader != null)
            {
                fileReader.close();
            }
        }
    }
}
Output
user = root 
password = oracle 
Refer:
https://docs.oracle.com/javase/8/docs/api/index.html?java/util/Properties.html

Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/PropertiesDemo_Intro_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/PropertiesDemo_Intro_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/537077189473458d05cdafa94c7c54305b3f3b9e/BasicJava/PropertiesDemo_Intro_App/?at=master

See also:

  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
  • All JAVA EE Links
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
  • Java Collection Framework Tutorial
  • JAVA Tutorial
  • Kids Tutorial
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