Read and remove Data

I Need help to read and write data
lets say i have a data.txt like this:

Code:

21:1,2,3,4
5:1,5,112,3
122:20,21,1,1,1

i want to check if number before the colon exist and spawn the item after the colon and then remove the entire line
eg : /check 5 --> spawn item id : 1,5,112 and 3 and then remove 5:1,5,112,3 from data.txt
so the data.txt now like this :

Code:

21:1,2,3,4
122:20,21,1,1,1

thanks for the help before

 

if(getConfig.isSet("if.A.value.Is.set.for.this.node"))
{
player.getInventory().addItem(getConfig().getInt("get.the.value.from.the.path"));
getConfig().set("if.A.value.Is.set.for.this.node", null);
}

 

once more question, can i have 2 or more config? like plugin.yml and data.yml?
and how?

 

Create your own.

http://wiki.bukkit.org/Configuration_API_Reference#Mirroring_the_JavaPlugin_implementation

 

thanks