Properties file - The reader class

Now we we need a PropertyReader class that would help us read the property values.

Consider the following code for reading the properties. Add this class under the util package.

public class PropertyReader {

    Properties properties = new Properties();
    InputStream inputStream = null;

    public PropertyReader() {
        loadProperties();
    }

    private void loadProperties() {
        try {
            inputStream = new FileInputStream("src/config.properties");
            properties.load(inputStream);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public String readProperty(String key) {
        return properties.getProperty(key);
    }
}

Important points to note in the property reader class.

• Whenever a new instance of this class is created, all the properties would be loaded.
• readProperty() method would be used by implementers to read a property value.