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How do I fill an ArrayList with objects, with each object inside being different?
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You can simply use add() method to create ArrayList of objects and add it to the ArrayList. This is simplest way to create ArrayList of objects in java.
We can use the Object class to declare our ArrayList using the syntax mentioned below. ArrayList<Object> list = new ArrayList<Object>(); The above list can hold values of any type. The code given below presents an example of the ArrayList with the Objects of multiple types.
Create And Declare ArrayList Once you import the ArrayList class in your program, you can create an ArrayList object. The general ArrayList creation syntax is: ArrayList<data_type> arrayList = new ArrayList<> ();
ArrayList<Matrices> list = new ArrayList<Matrices>(); list.add( new Matrices(1,1,10) ); list.add( new Matrices(1,2,20) ); Create an array to store the objects:
ArrayList<MyObject> list = new ArrayList<MyObject>(); In a single step:
list.add(new MyObject (1, 2, 3)); //Create a new object and adding it to list. or
MyObject myObject = new MyObject (1, 2, 3); //Create a new object. list.add(myObject); // Adding it to the list. If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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