I am creating a class in which I am declaring variables, and adding methods like insert,delete and modify. I can do the insert and modify using constructors but I don't know how to delete the elemets which are defined in the same class without using arrays. These will be stored in data file. But I should delete it before saving it in the data file. Because the details will go to datafile only when user clicks on save and he can delete the data entered if he wants to delete it. Can anybody please help me to solve this problem?