{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "###
San Jose State University
Department of Applied Data Science

**DATA 200
Computational Programming for Data Analytics**

Spring 2024
Instructor: Ron Mak
" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "# 3.15 `break` and `continue` Statements" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "#### Use a `break` statement if you need a `for` or `while` loop to terminate \"prematurely\". For example, the following loop, instead of looping until `number` reaches 100, exits immediately when `number` equals 10." ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "for number in range(100):\n", " if number == 10:\n", " break\n", " print(number, end=' ')" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "#### Good Python programming practice says we should use `break` sparingly. We should allow loops to terminate \"naturally\". A `while` loop terminates naturally when its condition becomes false. A `for` loop terminates naturally at the end of its sequence." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "#### Use the `continue` statement if you want to skip the remainder of the loop's suite, and the next execution of the suite to start immediately. For example, in the following loop, the value 5 is not printed. When `number` equals five, printing the value is skipped." ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "for number in range(10):\n", " if number == 5:\n", " continue\n", " print(number, end=' ')" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "##########################################################################\n", "# (C) Copyright 2019 by Deitel & Associates, Inc. and #\n", "# Pearson Education, Inc. All Rights Reserved. #\n", "# #\n", "# DISCLAIMER: The authors and publisher of this book have used their #\n", "# best efforts in preparing the book. These efforts include the #\n", "# development, research, and testing of the theories and programs #\n", "# to determine their effectiveness. The authors and publisher make #\n", "# no warranty of any kind, expressed or implied, with regard to these #\n", "# programs or to the documentation contained in these books. The authors #\n", "# and publisher shall not be liable in any event for incidental or #\n", "# consequential damages in connection with, or arising out of, the #\n", "# furnishing, performance, or use of these programs. #\n", "##########################################################################\n" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "# Additional material (C) Copyright 2023 by Ronald Mak" ] } ], "metadata": { "kernelspec": { "display_name": "Python 3 (ipykernel)", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.11.5" } }, "nbformat": 4, "nbformat_minor": 4 }