Lecture 80:-How to Increase Array Size

In some programming languages, such as C and C++, the size of a static array cannot be changed once it is declared. However, in other languages like Python, JavaScript, and Java, dynamic arrays or built-in data structures like lists and ArrayLists allow for easy resizing. Here's how you can increase the size of an array or a dynamic array in these languages:

Python:

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# Create a list my_list = [1, 2, 3] # Increase the size by appending elements my_list.append(4) my_list.append(5) print(my_list)  # Output: [1, 2, 3, 4, 5]

JavaScript:

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// Create an array let myArray = [1, 2, 3]; // Increase the size by pushing elements myArray.push(4); myArray.push(5); console.log(myArray);  // Output: [1, 2, 3, 4, 5]

Java:

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import java.util.ArrayList; public class ArrayResizeDemo {    public static void main(String[] args) {        // Create an ArrayList        ArrayList<Integer> myArrayList = new ArrayList<>();        // Increase the size by adding elements        myArrayList.add(1);        myArrayList.add(2);        myArrayList.add(3);        System.out.println(myArrayList);  // Output: [1, 2, 3]    } }

In Python and JavaScript, you can increase the size of an array-like structure (list or array) by using the append() or push() method, respectively, to add elements to the end of the array.

In Java, you can utilize the ArrayList class from the Java Collections Framework, which provides a dynamic array-like structure. The add() method allows you to add elements to the ArrayList, increasing its size.

It's important to note that in all these examples, the original array or dynamic array is not modified in place but rather replaced with a new array or data structure that has the increased size.