Presentation is loading. Please wait.

Presentation is loading. Please wait.

Switch-Case Statement. What is a switch-case?  The switch-case statement is really nothing more than a glorified.

Published byHilary Norman Modified over 8 years ago

Similar presentations

Presentation on theme: "Switch-Case Statement. What is a switch-case?  The switch-case statement is really nothing more than a glorified."— Presentation transcript:

1 http://cs.mst.edu Switch-Case Statement

2 http://cs.mst.edu What is a switch-case?  The switch-case statement is really nothing more than a glorified nested if-else package.  C++ has taken on the headache of setting up the overhead of creating the structure of nested if- else for you.

3 http://cs.mst.edu switch-case Syntax switch (control_var) { case constant1: statement1 break; case constant2: statement2 break;... case constantN: statementN break; default: default_statement }

4 http://cs.mst.edu switch-case Syntax switch (control_var) { case constant1: statement1 break; case constant2: statement2 break;... case constantN: statementN break; default: default_statement }

5 http://cs.mst.edu switch-case Syntax switch (control_var) { case constant1: statement1 break; case constant2: statement2 break;... case constantN: statementN break; default: default_statement }

6 http://cs.mst.edu switch-case Syntax switch (control_var) { case constant1: statement1 break; case constant2: statement2 break;... case constantN: statementN break; default: default_statement }

7 http://cs.mst.edu switch-case Syntax switch (control_var) { case constant1: statement1 break; case constant2: statement2 break;... case constantN: statementN break; default: default_statement }

8 http://cs.mst.edu switch-case Syntax switch (control_var) { case constant1: statement1 break; case constant2: statement2 break;... case constantN: statementN break; default: default_statement }

9 http://cs.mst.edu switch-case Syntax switch (control_var) { case constant1: statement1 break; case constant2: statement2 break;... case constantN: statementN break; default: default_statement }

10 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

11 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; } user inputs: 2

12 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

13 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

14 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

15 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

16 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

17 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

18 http://cs.mst.edu short choice; cout > choice; switch (choice) { case 1: cout << “Oink”; break; case 2: cout << “Bark”; cout << “Ruffruff”; break; case 3: cout << “Moooo” << endl; break; }

19 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

20 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

21 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

22 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit ); user inputs: c

23 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

24 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

25 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

26 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

27 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

28 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

29 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

30 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

31 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

32 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

33 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

34 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

35 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit ); user inputs: 4

36 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

37 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

38 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

39 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

40 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

41 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

42 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

43 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

44 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

45 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

46 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

47 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

48 http://cs.mst.edu bool quit = false; char choice; do { cout > choice; switch (choice) { case ‘1’: case ‘p’: cout << “Oink”; break; case ‘2’: case ‘d’: cout << “Bark”; break; case ‘3’: case ‘c’: cout << “Moooo” << endl; break; case ‘4’: case ‘q’: quit = true; break; default: cout << “ERROR: Invalid input...” << endl; } } while ( !quit );

49 http://cs.mst.edu long student_number; short student_number_index; cout > student_number; student_number_index = student_number / 10000; switch (student_number_index) { case 12: // code to handle transfers break; case 13: // code to handle freshmen break; case 14: // code to handle sophomores break; case 35: // code to handle grads default: // Error condition }

50 http://cs.mst.edu End of Session

Download ppt "Switch-Case Statement. What is a switch-case?  The switch-case statement is really nothing more than a glorified."

Similar presentations

Chapter 4 - Control Statements

Chapter 4 - Control Statements
Selection The Switch Statement 2/16/11. grade = 'P'; switch (grade){ case 'A': cout

Selection The Switch Statement 2/16/11. grade = 'P'; switch (grade){ case 'A': cout
Week 4 Selections This week shows how to use selection statements for more flexible programs. It also describes the various integral types that are available.

Week 4 Selections This week shows how to use selection statements for more flexible programs. It also describes the various integral types that are available.
Programming Switch command. COMP102 Prog. Fundamentals: Switch command / Slide 2 Multiple Selection: The switch Statement value1 action 1 value2 action.

Programming Switch command. COMP102 Prog. Fundamentals: Switch command / Slide 2 Multiple Selection: The switch Statement value1 action 1 value2 action.
1 Objectives You should be able to describe: Relational Expressions The if-else Statement Nested if Statements The switch Statement Common Programming.

1 Objectives You should be able to describe: Relational Expressions The if-else Statement Nested if Statements The switch Statement Common Programming.
Selection Statements choice of one among several blocks of code Java supports 3 kinds of selection statements: if statement – selects one block or leaves.

Selection Statements choice of one among several blocks of code Java supports 3 kinds of selection statements: if statement – selects one block or leaves.
C++ Programming: From Problem Analysis to Program Design, Third Edition Chapter 4: Control Structures I (Selection)

C++ Programming: From Problem Analysis to Program Design, Third Edition Chapter 4: Control Structures I (Selection)
Switch structure Switch structure selects one from several alternatives depending on the value of the controlling expression. The controlling expression.

Switch structure Switch structure selects one from several alternatives depending on the value of the controlling expression. The controlling expression.
If Statements. COMP104 If / Slide 2 Three Program Structures * Sequence - executable statements which the computer processes in the given order * Choice.

If Statements. COMP104 If / Slide 2 Three Program Structures * Sequence - executable statements which the computer processes in the given order * Choice.
Copyright © 2012 Pearson Education, Inc. Chapter 4: Making Decisions.

Copyright © 2012 Pearson Education, Inc. Chapter 4: Making Decisions.
Multi-alternative Selection Both the if clause and the else clause of an if...else statement can contain any kind of statement, including another selection.

Multi-alternative Selection Both the if clause and the else clause of an if...else statement can contain any kind of statement, including another selection.
1 CS 105 Lecture 5 Logical Operators; Switch Statement Wed, Feb 16, 2011, 5:11 pm.

1 CS 105 Lecture 5 Logical Operators; Switch Statement Wed, Feb 16, 2011, 5:11 pm.
Quiz 1 Exam 1 Next Week. Nested if Statements if (myGrade >= 80) if (myGrade >= 90) cout

Quiz 1 Exam 1 Next Week. Nested if Statements if (myGrade >= 80) if (myGrade >= 90) cout
Slides prepared by Rose Williams, Binghamton University Chapter 3 Flow of Control if-else and switch statements.

Slides prepared by Rose Williams, Binghamton University Chapter 3 Flow of Control if-else and switch statements.
Section 3 - Selection and Repetition Constructs. Control Structures 1. Sequence 2. Selection 3. Repetition.

Section 3 - Selection and Repetition Constructs. Control Structures 1. Sequence 2. Selection 3. Repetition.
Fundamental Programming 310201 Fundamental Programming More on Selection.

Fundamental Programming Fundamental Programming More on Selection.
More on Input Output Input Stream : A sequence of characters from an input device (like the keyboard) to the computer (the program running). Output Stream.

More on Input Output Input Stream : A sequence of characters from an input device (like the keyboard) to the computer (the program running). Output Stream.
IF-ELSE IF-ELSE STATEMENT SWITCH-CASE STATEMENT 350142 - Computer Programming Asst. Prof. Dr. Choopan Rattanapoka and Asst. Prof. Dr. Suphot Chunwiphat.

IF-ELSE IF-ELSE STATEMENT SWITCH-CASE STATEMENT Computer Programming Asst. Prof. Dr. Choopan Rattanapoka and Asst. Prof. Dr. Suphot Chunwiphat.
CONTROL STRUCTURES (MULTI-WAY SELECTION). MULTI-WAY SELECTION  EXTENDED IF-ELSE  Used to select exactly one task out of multiple tasks (or possibly.

CONTROL STRUCTURES (MULTI-WAY SELECTION). MULTI-WAY SELECTION  EXTENDED IF-ELSE  Used to select exactly one task out of multiple tasks (or possibly.
2 Objectives You should be able to describe: Relational Expressions Relational Expressions The if-else Statement The if-else Statement Nested if Statements.

2 Objectives You should be able to describe: Relational Expressions Relational Expressions The if-else Statement The if-else Statement Nested if Statements.

Similar presentations

Ads by Google