intはプリミティブな整数型で、数値の演算や効率的な処理に適しています。 Integerはintをオブジェクトとして扱えるラッパークラスで、nullやコレクションに使う場合に便利です。 1. int型とは intはJavaのプリミティブ（基本）データ型です。 32ビットの整数値 ...

List<int> のようにプリミティブ型を直接扱うことはできず、代わりに List<Integer> のようにラッパークラスを使用します。 例 ...

In this assignment, you will implement a class called CustomIntegerArrayList. This class represents a fancy ArrayList that stores integers and supports additional operations not included in Java's ...

Lab Objective: In this lab, we will demonstrate how to declare and initialize ArrayList, and how to manipulate ArrayList using built-in methods. By the end of this lab, learners will be able to use ...

So far, we have found ourselves using arrays to store most of our data. However, we have also noticed some limitations with arrays: You need to know the maximum size when you allocate it. You can’t ...