In this section, you will know about the properties file. The properties file is a simple text file.

Properties file in Java

     

In this section, you will know about the properties file. The properties file is a simple text file. Properties file contains keys and values for the specific key. Keys of properties file is always on left side and it's value is on the right side. Keys and values are separated by equal(=) sign. It is most important for the hash table. All the properties file are saved with the ".properties" extension. 

Properties class:
java.util.properties class extends the java.util.Hashtable class. This class is used to save the properties to the stream and read the properties from the stream. You can use the properties file to store the configurable values like database connection string, user name and password instead of hard coding into the program. 

Here, keys and values are specified in the properties file as follows:

#Mon Oct 23 15:16:21 GMT+05:30 2006
vk=Rosé.Net
RI=RoseIndia.Net
23 =Delhi
D =Deepak Kumar
Message= Software Development works

Related Tags for Properties file in Java:

More Tutorials from this section

• Get All Keys and Values of the Properties files in Java
• Properties file in Java
• Properties file in Java
• Read the Key-Value of Properties Files in Java
• Write Keys and Values to the Properties file in Java
• Properties file in Java
• Properties file in Java
• Java read properties file
• Java Write to properties file
• Java Properties File Example
• Storing properties in XML file
• Properties
• How to write .properties file from jsp
• Loading properties from a XML file
• display error message for dupliacate record in properties file
• System Properties
• struts2 properties file
• Reading duplicate keys from .properties file - Development process
• Built In Properties
• Problem to print from my properties file - Java Server Faces Questions