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Thinking about Strings

Discover the basics of strings - sequences of characters - and learn how they can be manipulated and analyzed. Explore various operations on strings and understand their applications to other types of data sequences.

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Thinking about Strings

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  1. Thinking about Strings Intro to Computer Science CS1510, Section 2 Dr. Sarah Diesburg

  2. What are strings? • Sequences of characters • We will often work with sequences of data • String is just a specific example • We will see many of the things we do with strings later on with other sequences of data

  3. Sequences of data • Can work with size of sequence • Can work with individual pieces of information in the sequence

  4. Thought Exercise • Suppose I give you a string >>> mesg = “Today is Friday” • What is the length of that string?

  5. Thought Exercise >>> mesg = “Today is Friday” • mesg[1] • mesg[11] • mesg[-1] • mesg[3:9] • mesg[10:] • mesg[10:37]

  6. Questions so far?

  7. Let’s talk about the lab • Sequences, indexes, and slicing. • Reversing the Str • Working backwards and appending • Working forwards and prepending • Counting the vowels • Handling both cases

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