Now, we are ready to write this Arraylist into a file. Then, we create an ArrayList name people and add those 3 Person objects. inside this main methods we will create 3 objects of the class Person. As this the objects of this class will be used to write to file and then load back, we need to implement the Serializable interface to indicate Java that this class can be serialized or deserialized.ģ. Create a class Person with 3 attributes, a constructor function and overriding toString method to print the detail of an object we will initialize later.
Since we will need to use a lot of classes inside java.io, we import everything inside that specific library.Ģ.
This would help us to store the data to test other features that we added to the program without re-putting the common data.įirst, we’ll take a look at the code belowġ. Today, we will get to know how to write an ArrayList object to a file and then load the object back to the Java program form that file.
0 kommentar(er)
