CMPS 162: Introduction to Programming

Introduction

Strings, i.e., text in the memory of a computer, are one of the most important types of values in programming. Many things can be represented by strings. Languages have built-in functionality to operate on strings, such as getting the length of a string or extracting a substring. For example, one could search a string to see if it follows the proper formatting for an address, meaning that there should be a street number followed by a space, then the street name, and finally the city and ZIP code. Almost all programs operate on strings, at the least to simply communicate results to the user.

Module Objectives

• Illustrate changing case
• Show measuring length and extracting parts of strings
• Describe finding segments in strings
• Describe finding a character at a location in a string
• Apply replacing characters in strings

Learning Resources

• Module 3 Readings: Chapters 21 thru 25 from Myers

Learning Activities

• Module 3 Assignment: Interactive Coding Exercises 21 thru 25

For Further Study

• Read more about strings on Wikipedia