How to use PremiumLevels API
The plugin simply allows any other plugin to easily call it using a simple API. To use the API, add the jar of the plugin and the following line in your plugin :
What the API can do
Using the API, you can now do the following :

• Add experience to a player :
  
  Code (Text):

  premiumLevels.getPlayerLevel(player).addExperience(double);
• Set the experience of a player :
  
  Code (Text):

  premiumLevels.getPlayerLevel(player).setExperience(double);
• Add levels to a player :
  
  Code (Text):

  premiumLevels.getPlayerLevel(player).addLevel(int);
• Set the level of a player :
  
  Code (Text):

  premiumLevels.getPlayerLevel(player).setLevel(int);
• Get the experience of a player :
  
  Code (Text):

  double experience = premiumLevels.getPlayerLevel(player).getExperience();
• Get the level of a player :
  
  Code (Text):

  int level = premiumLevels.getPlayerLevel(player).getLevel();