How to set object value using List<Object> to a model class in java?

Question

how do add each property value in my model using List? Here is what i do

here is my object : Item.java

public class Item {

    private String code;

    private String name;

    private Integer qty;

    // skip the getter setter
}

here is how i want to add the value from another class

List<Item> sBarang = new ArrayList<Item>();
sBarang.add("");

How do I add each property value my Item.java?

What I can do is something like this :

Item mItem = new Item();
mItem .setCode("101");
mItem .setName("Hammer");
mItem .setQty(10);

Answer 1

Unless I'm missing something you just need to add your mItem to your List. Like

Item mItem = new Item(); // <-- instantiate a new Item.
mItem.setCode("101");
mItem.setName("Hammer");
mItem.setQty(10);
sBarang.add(mItem); // <-- add it to your List<Item>.

You could also create a new Item constructor that looks something like

public Item(String code, String name, Integer qty) {
    this.code = code;
    this.name = name;
    this.qty = qty;
}

and then use a single line add like

sBarang.add(new Item("101", "Hammer", 10)); 

Answer 2

Make a constructor for your convenience.

public class Item {
    public Item(String code, String name, int qty){
        this.code=code;
        this.name=name;
        this.qty=qty;
    }
    private String code;

    private String name;

    private Integer qty;

    //skip the getter setter
}

Since then, you can add new "Item" object easily by

sBarang.add(new Item("101","Hammer",10));