Selection Structures and Temperature Conversion in Various Programming Paradigms
Pseudocode examples and Java implementations showcasing IF, IF-ELSE, and IF-ELSE-IF structures for temperature conversion. Understand how to convert Celsius to Fahrenheit and provide different outputs based on the temperature range. Enhance your programming skills with these practical examples.
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Presentation Transcript
Pseudocode - IF Statement MAIN Fahrenheit = 0, Celsius = 0 PRINT Enter Celsius temperature: READ user input Celsius = user input Fahrenheit = 9.0 / 5.0 * Celsius + 32 PRINT Fahrenheit IF (Fahrenheit > = 90) THEN PRINT heat warning Ps ENDIF END MAIN
Java Example - if Statement import java.util.Scanner; public class CelsiusToFahrenheit { public static void main (String[] args) { double celsius= 0.0, fahrenheit = 0.0; Scanner scan = new Scanner (System.in); System.out.print ( What is the Celsius temperature? "); celsius = scan.nextDouble(); fahrenheit = 9.0 / 5.0 * celsius + 32; System.out.println ( The temperature is " + fahrenheit + degrees Fahrenheit ); if (fahrenheit >= 90) { System.out.println( It is really hot out there! ); } } }
Pseudocode IF-ELSE Statement MAIN Fahrenheit = 0, Celsius = 0 PRINT Enter Celsius temperature: READ user input Celsius = user input Fahrenheit = 9.0 / 5.0 * Celsius + 32 PRINT Fahrenheit IF (Fahrenheit > = 90) THEN PRINT heat warning ELSE PRINT there is no extreme heat Ps ENDIF END MAIN
Java Example if-else (code snippet) double celsius= 0.0, fahrenheit = 0.0; Scanner scan = new Scanner (System.in); System.out.print ( What is the Celsius temperature? "); celsius = scan.nextDouble(); fahrenheit = 9.0 / 5.0 * celsius + 32; System.out.println ( The temperature is " + fahrenheit + degrees Fahrenheit ); if(fahrenheit >= 90) { System.out.println( It is really hot out there! ); } else { System.out.println( There is no extreme heat today. ); }
Pseudocode IF-ELSE-IF MAIN Fahrenheit = 0, Celsius = 0 PRINT Enter Celsius temperature: READ user input Celsius = user input Fahrenheit = 9.0 / 5.0 * Celsius + 32 PRINT Fahrenheit IF (Fahrenheit > = 90) THEN PRINT heat warning ELSE IF (Fahrenheit >= 80) THEN PRINT it is warm, but there is no extreme heat ELSE IF (Fahrenheit >= 70) THEN PRINT the temperature is pleasant and suggest a picnic ELSE PRINT a suggestion to take a jacket END IF END MAIN Ps
Java Example if-else-if double celsius= 0.0, fahrenheit = 0.0; Scanner scan = new Scanner (System.in); System.out.print ( What is the Celsius temperature? "); celsius = scan.nextDouble(); fahrenheit = 9.0 / 5.0 * celsius + 32; System.out.println ( The temperature is " + fahrenheit + degrees Fahrenheit ); if (fahrenheit >= 90){ System.out.println( It is really hot out there! ); } else if (fahrenheit >= 80) { System.out.println( It is very warm... ); } // CONTINUED ON NEXT SLIDE
Java Example if-else-if (cont) else if (fahrenheit >= 70) { System.out.println( It is very pleasant today! ) } else { System.out.println( It is cool today. Take a jacket. ); }
Pseudocode switch Statement // Read user input like before conditions = compute using Fahrenheit variable / 10 CASE conditions OF 10 9 8 7 DEFAULT : : : : : PRINT stay inside , BREAK PRINT be careful due to heat , BREAK PRINT it is hot, but not extreme , BREAK PRINT pack a picnic , BREAK PRINT take a jacket , BREAK ENDCASE Ps
Java switch Example int condition = (int)fahrenheit / 10; System.out.println("It is in the " + condition + 0's."); switch (condition) { case 10: break; case 9: System.out.println("It is really hot out there!"); break; case 8: System.out.println("It s warm, but no extreme heat!"); break; case 7: System.out.println("It is very pleasant today!"); break; default: System.out.println("Take a jacket!"); break; } System.out.println("Stay inside!");
