Strings in Python
ICSE · Class 10 · Robotics & Artificial Intelligence
Summary of Strings in Python for ICSE Class 10 Robotics & Artificial Intelligence. Key concepts, important points, and chapter overview.
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Overview
A string is a consecutive sequence of characters enclosed in single or double quotes. It can contain letters, numbers, special symbols, and backslashes. Strings are treated as arrays of characters stored in consecutive memory locations, and each character occupies 1 byte in the memory heap. Strings
Key Concepts
A string is a consecutive sequence
A string is a consecutive sequence of characters enclosed or surrounded by single or double quotes. Python treats single quotes the same as double quo
Strings are created by assigning quoted
Strings are created by assigning quoted text to a variable. Triple quotes are also used for multiline strings. An empty string has 0 characters.
An escape sequence starts with
An escape sequence starts with a backslash and is used to represent special characters or non-printing characters. Common examples are '\n' for newlin
Indexing means accessing a character by
Indexing means accessing a character by its position. Indexing starts from zero, so the first character has index 0. Negative indexing starts from the
Slicing means taking a range
Slicing means taking a range of characters from a string. The form is str[start:end:step_size], where the end position is excluded. The default step s
Learning Objectives
- Understand what a string is in Python
- Learn how to create strings using single, double, and triple quotes
- Use escape sequences such as newline, tab, and carriage return
- Access characters using indexing and slicing
- Apply string operators like concatenation, repetition, and membership
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