Introduction to Arrays and Strings in Programming Fundamentals, Study Guides, Projects, Research of Computer Programming

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Arrays & Strings

Programming Fundamentals

Informatics Engineering

Gunadarma University

Introduction to Arrays and Strings: Arrays and strings are fundamental data structures in programming. Arrays are collections of elements of the same type, stored at contiguous memory locations, while strings are sequences of characters. Key Concepts in Arrays

1. Definition: o An array is a data structure that can hold a fixed number of elements of the same type. o Syntax (Python Example):
2. Types of Arrays: o One-dimensional array: A list of elements in a single row. o Multi-dimensional array: An array containing multiple rows and columns (e.g., matrix).
3. Operations on Arrays: o Accessing elements: Using index. o Modifying elements: o Traversing an array:

o String methods: ▪ upper(), lower(), strip(), split(), replace() Example Problem and Solution Problem: Create a Python script that demonstrates the use of arrays and strings, including basic operations. Steps:

1. Define an Array and Perform Operations:

2. Define a String and Perform Operations: Practice Exercises
3. Arrays: o Create an array of your favorite colors and perform the following: ▪ Access the second element. ▪ Change the last element to a new color. ▪ Print all the colors using a loop. ▪ Find the length of the array.

3. Array and String Methods: o Explore additional methods and functions available for arrays and strings. o Example: array.append(), array.pop(), str.join(), str.find() Conclusion Understanding arrays and strings is crucial for programming as they are widely used in data manipulation and storage. Arrays help in organizing data in a structured way, while strings are essential for handling textual data. Practice defining, accessing, and manipulating arrays and strings to build a strong foundation in these fundamental data structures.