import java.util.Scanner;

public class ControlFlowLec {

//Methods used to illustrate the difference between && and &.

public static boolean left(boolean value) {

System.out.printf("ControlFlowLec.left was called with a %s value.\n", value);

return value;

}

public static boolean right(boolean value) {

System.out.printf("ControlFlowLec.right was called with a %s value.\n", value);

return value;

}

public static void main(String[] args) {

System.out.println("Control Flow Lecture");

// boolean isTrue = true;

// System.out.println("isTrue = " + isTrue);

//Relational operators

int age = 38;

//

// // Equality ==

// boolean isTwentyOne = age == 21;

// System.out.println("isTwentyOne = " + isTwentyOne);

//

// // Inequality !=

// boolean isNotTwentyOne = age != 21;

// System.out.println("isNotTwentyOne = " + isNotTwentyOne);

//

// // Less Than <

// boolean isLessThanTwentyOne = age < 21;

// System.out.println("isLessThanTwentyOne = " + isLessThanTwentyOne);

//

// // More Than >

// boolean isMoreThanTwentyOne = age > 21;

// System.out.println("isMoreThanTwentyOne = " + isMoreThanTwentyOne);

// // Greater Than or Equal >=

// float orderTotal = 30.00F;

// boolean applyFreeShipping = orderTotal >= 30;

// System.out.println("applyFreeShipping = " + applyFreeShipping);

// // Less Than or Equal <=

// float orderTotal = 15.99F;

// boolean applySmallOrderSurcharge = orderTotal <= 15.00F;

// System.out.println("applySmallOrderSurcharge = " + applySmallOrderSurcharge);

// Logical Operators

// && And

// boolean isLoggedIn = true;

// boolean isAdmin = true;

// boolean showTheAdminPanel = isLoggedIn && isAdmin && age > 21;

// System.out.println("showTheAdminPanel = " + showTheAdminPanel);

// Showing that Java optimizes when using && by only evaluating what needs to be evaluated.

// The first false means that the entire expression is false therefore when using && the

// second expression is not evaluated.

// boolean booleanResult = left(false) && right(false);

// System.out.println("booleanResult = " + booleanResult);

// || Or

// boolean isAdmin = false;

// boolean isAuthor = false;

// boolean canEditArticle = isAdmin || isAuthor;

// System.out.println("canEditArticle = " + canEditArticle);

// & And

// boolean isLoggedIn = false;

// boolean isAdmin = true;

// boolean showTheAdminPanel = isLoggedIn & isAdmin;

// System.out.println("showTheAdminPanel = " + showTheAdminPanel);

// showing evaluation of both sides when using a single ampersand.

// boolean booleanResult = left(false) & right(true);

// System.out.println("booleanResult = " + booleanResult);

// | Or

// boolean isAdmin = true;

// boolean isAuthor = false;

// boolean canEditArticle = isAdmin | isAuthor;

// System.out.println("canEditArticle = " + canEditArticle);

// ! Not

// boolean isLoggedIn = true;

// boolean shouldShowLogin = !isLoggedIn;

// System.out.println("shouldShowLogin = " + shouldShowLogin);

// String Comparison Warning

// Scanner sc = new Scanner(System.in);

// System.out.println("Continue? [y/n]");

// String userInput = sc.next();

//

// // Never do this!

//// boolean confirmation = userInput == "y";

//// System.out.println("confirmation = " + confirmation);

//

// // Always use .equals to compare Strings.

// boolean confirmation = userInput.equals("y");

// System.out.println("confirmation = " + confirmation);

// Control Structures

// if

// int weeksInClass = 10;

// boolean moreThanHalfWayDone = weeksInClass >= 10;

// if(moreThanHalfWayDone) {

// System.out.println("We are more than half way done now!");

// } else if(weeksInClass != 0) {

// System.out.printf("We are %s weeks in class.\n", weeksInClass);

// } else {

// System.out.println("We have not started class yet.");

// }

// Switch

// int dayNumber = 1;

//

// switch (dayNumber) {

// case 1:

// System.out.println("Monday");

// //Fell through we need a break.

// break;

// case 2:

// System.out.println("Tuesday");

// break;

// default:

// System.out.println("Unknown");

// break;

// }

//While loop

// int i = 0;

//

// while (i < 10) {

// System.out.println("From a while loop: i = " + i);

// i++;

// }

//Do While loop

// int counter = 0;

// do {

// System.out.println("From a do while loop: counter = " + counter);

// counter++;

// } while (counter < 10);

//For loop

// for(int a = 0; a < 10; a++){

// System.out.println("From a for loop: a = " + a);

// }

for(int i = 1; i <= 10; i++){ // <--+

if(i % 2 == 1) { // |

continue; // ---------------+ Continue to the next iteration.

} else if( i > 5) {

break; // --------------------+ Break out of the loop.

} // |

System.out.println("i = " + i);// |

} // |

// <----------------------------------+

}

}