How to store objects with ArrayList in Java | Quick Tutorial | Scanner, Input Method | Example Code смотреть онлайн

To take input in an ArrayList in theory, you can follow the steps below:


Import the necessary packages: If you're using a programming language that supports ArrayList (such as Java), make sure to import the required packages at the beginning of your code. For example, in Java, you would import java.util.ArrayList.


Create an ArrayList object: Declare and initialize an ArrayList object to store the input values. You can specify the type of elements the ArrayList will hold within angle brackets. For instance, to store integers, you can create an ArrayList.


Prompt the user for input: Display a message or prompt to the user, indicating what kind of input you expect. This can be done using the output stream or a user interface.


Read the input value: Depending on your programming language or the environment you're using, you can use appropriate methods to read the input value. Common methods include Scanner in Java, cin in C++, or reading from the console.


Add the input value to the ArrayList: Once you've obtained the input value, add it to the ArrayList using the add() method or a similar method provided by the programming language or library you're using.


Repeat steps 3-5 as needed: If you want to take multiple inputs, repeat steps 3-5 to obtain each value and add it to the ArrayList.


Process the ArrayList: Once you have finished taking input, you can perform any desired operations on the ArrayList, such as sorting, searching, or iterating over its elements.