Java Program to Implement Dynamic Array
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A dynamic array, also known as a ArrayList in Java, is an data structure that can grow or shrink in size dynamically as elements are added or removed. Dynamic arrays allow for changing the size of the array based on the number of elements it contains, while static arrays have a fixed size that cannot be modified. Dynamic arrays in Java are implemented using the ArrayList class, which provides methods to add, remove, and modify elements in the array. The ArrayList class also automatically handles resizing of the array as needed.
Working of Dynamic Array
ArrayList Methods
ArrayList class provides several methods to manipulate the contents of the ArrayList. Here are some commonly used methods:
Write a Java Program to implement Dynamic Array.
Here is the source code of the Java Program to implement Dynamic Array. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.
1. The program includes two classes: DynamicArray and DynamicArrayTest.
2. DynamicArray class contains the methods to perform operations on dynamic arrays such as clear(), size(), insert(), get(), remove(), and display().
3. The main logic for dynamic array operations is implemented in the main method of DynamicArrayTest class.
4. The program first creates an object of DynamicArray class.
5. A menu-driven console interface is provided for the user to perform various dynamic array operations.
6. The user is prompted to enter a choice from the menu and then perform the corresponding operation.
7. The program loops until the user chooses to exit.
8. When the user chooses an operation, the corresponding method of the DynamicArray class is called.
9. Finally, the current state of the dynamic array is displayed after each operation using the display() method.