Java how to read returned arraylist from another class method

To read an ArrayList returned from a method in another class in Java, you can use the method just like any other method. You can call the method, pass any necessary arguments, and store the returned ArrayList in a variable for further processing.

Here is an example of how you can read an ArrayList returned from a method in another class in Java:

import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        ArrayList<String> list = DataProvider.getData();

        for (String item : list) {
            System.out.println(item);
        }
    }
}

class DataProvider {
    public static ArrayList<String> getData() {
        ArrayList<String> list = new ArrayList<>();
        list.add("Item 1");
        list.add("Item 2");
        list.add("Item 3");
        return list;
    }
}

In this example, the Main class has a main method that calls the getData method of the DataProvider class and stores the returned ArrayList in a variable named list.

The main method then iterates over the ArrayList using a for-each loop and prints each item to the console using the System.out.println method.

This code will call the getData method of the DataProvider class, read the returned ArrayList, and print its contents to the console. You can modify the code to perform other operations with the ArrayList, such as sorting it or searching for specific items.

Keep in mind that this is just one way to read an ArrayList returned from a method in another class in Java. You can use different techniques and libraries to achieve the same result, such as using the List interface or the Collections class. You may also need to handle exceptions and other error conditions.