Macaraeg

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Macaraeg

  1. 1. PROGRAMMINGSubmitted by Jeronika Macaraeg http://eglobiotraining.com
  2. 2. TOPICS INPROGRAMMING:SWITCH CASELOOPING http://eglobiotraining.com
  3. 3. LOOPING Programming languages provide various control structures that allow for more complicated execution paths. A loop statement allows us to execute a statement or group of statements multiple times and following is the general from of a loop statement in most of the programming languages. http://eglobiotraining.com
  4. 4. looping programminghas three types:  FOR  WHILE  DO WHILE http://eglobiotraining.com
  5. 5. FOR The statements in the for loop repeat continuously for aspecific number of times. The while and do-while loops repeat until a certain condition is met. The for loop repeats until a specific count is met. Use a for loop when the number of repetition is know, or can be supplied by the user http://eglobiotraining.com
  6. 6. WHILE The while loop allows programs to repeat a statement or series of statements, over and over, as long as a certain test condition is true. http://eglobiotraining.com
  7. 7. Do while In most computer programming languages, a do while loop, sometimes just called a while loop, is a control flow statement that allows code to be executed once based on a given Boolean condition Unlike for and while loops, which test the loop condition at the top of the loop, the do...while loop checks its condition at the bottom of the loop. http://eglobiotraining.com
  8. 8. SWITCH CASE Switch case statements are a substitute for long if statements that compare a variable to several "integral" values ("integral" values are simply values that can be expressed as an integer, such as the value of a char). The basic format for using the switch case in the programming is outlined below. The value of the variable given into switch is compared to the value following each of the cases, and when one value matches the value of the variable, the computer continues executing the program from that point. http://eglobiotraining.com
  9. 9. SWITCH CASE In programming, a switch, case, select or inspect statement is a type of selection control mechanism that exists in most imperative programming languages such as Pascal, Ada, C/C++, C#, Java, and so on. It is also included in several other types of Programming languages. Its purpose is to allow the value of a variable or expression to control the flow of program execution via a multiway branch (or "go to", one of several labels). The main reasons for using a switch include improving clarity, by reducing otherwise repetitive coding, and (if the heuristics permit) also offering the potential for faster execution through easier compiler optimization in many cases. http://eglobiotraining.com
  10. 10. EXAMPLES OF SOURCE CODE IN C++PROGRAMMING#include <iostream>#include <stdlib.h> // switch statement based on the choice variableusing namespace std; switch (choice) // notice no semicolonvoid welcome(); { case A: // choice was the letter Achar getChar(); case a: // choice was the letter avoid displayResponse(char choice); cout << "your awesome dude.nn"; break; // this ends the statements for case A/aint main(int argc, char *argv[]) case B: // choice was the letter b case b: // choice was the letter b{ cout << "you will find your lovelife.nn"; char choice; // declares the choice variable break; // this ends the statements for case B/b case C: // choice was the letter C welcome(); // This calls the welcome function case c: // choice was the letter c choice = getChar(); // calls getChar and returns the value for choice cout << "your will won the lottery.nn"; break; // this ends the statements for case C/c displayResponse(choice); // passes choice to displayResponse function case D: // choice was the letter D case d: // choice was the letter d cout << "your so ugly!!.nn"; system("PAUSE"); break; // this ends the statements for case D/d return 0; default: // used when choice falls out of the cases covered above cout << "You didnt pick a letter a, b or c.nn";} // end main again = getChar(); // gives the user another try// welcome function displays an opening message to displayResponse(again); // recalls displayResponse with new character// explain the program to the user break; } // end of switch statementvoid welcome() } // end displayResponse function{ cout << "This program displays different messages dependingn"; cout << "on which letter is entered by the user.n"; cout << "Pick a letter a, b, c or d to see whatn"; cout << "the program will say.nn";} // end of welcome function// getChar asks the user for a letter a, b or c.// The character is returned to where the function was called. http://eglobiotraining.com
  11. 11. EXAMPLES OF SOURCE CODE IN C++ PROGRAMMING#include <iostream.h>int main(void) { int x = 0; int y = 0; bool validNumber = false; while (validNumber == false) { cout << "Please enter an integer between 1 and 10: "; cin >> x; cout << "You entered: " << x << endl << endl; if ((x < 1) || (x > 10)) { cout << "Your value for x is not between 1 and 10!" << endl; cout << "Please re-enter the number!" << endl << endl; } else validNumber = true; } cout << "Thank you for entering a valid number!" << endl; return 0;  } http://eglobiotraining.com
  12. 12. EXAMPLES OF SOURCE CODE IN C++PROGRAMMING #include <iostream> using namespace std; main() { int num1, num2; char again = y; while (again == y || again == Y) { cout << "Enter a number: "; cin >> num1; cout << "Enter another number: "; cin >> num2; cout << "Their sum is " << (num1 + num2) << endl; cout << "Do you want to do this again? "; cin >> again; } return 0; } http://eglobiotraining.com
  13. 13. EXAMPLES OF SOURCE CODE IN C++ PROGRAMMING#include <iostream>#include <cmath> }using namespace std; cout <<"nSeconds falling distancen";//prototype cout <<"---------------------------------------n";int fallingdistance(); for ( count = 1; count <= time; count++)//main function { distance = .5 * 9.8 * pow(time,int main() 2.0);{ cout << count << " int count = 1 ; " << distance <<" meters"<< endl; int time; double distance ; } cout << "Please enter time in 1 through system ("pause"); return 0;10 seconds.nn"; } // falling distance function for a return value in seconds time = fallingdistance(); transfer to time int fallingdistance () while ( time < 1 || time > 10) { { cout << "Must enter between 1 and 10 int seconds; cin >> seconds;seconds, please re-enter.n"; return seconds; time = fallingdistance(); } http://eglobiotraining.com
  14. 14. RUNNING SOURCE FILE IN C++PROGRAMMING http://eglobiotraining.com
  15. 15. RUNNING SOURCE FILE IN C++PROGRAMMING http://eglobiotraining.com
  16. 16. RUNNING SOURCE FILE IN C++PROGRAMMING http://eglobiotraining.com
  17. 17. RUNNING SOURCE FILE IN C++PROGRAMMING http://eglobiotraining.com
  18. 18. http://eglobiotraining.com SUBMITTED TO: EDWIN GLOBIO http://eglobiotraining.com

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