Week02BooleanConditionalsLoopsLab.java

//
// Copyright (c) 2023 Promineo Tech
// Author:  Promineo Tech Academic Team
// Subject:  Boolean & Conditionals Lab
// Java Week 02 Lab  
//
package week02;

public class Week02BooleanConditionalsLoopsLab {
	
	public static void main(String[] args) {
		
		//
		// BOOLEANS and CONDITIONALS:
		//
		
		// 1. Variable Declaration:
		//		a. Create a variable named age and assign it a value of 14
int age = 14;
		
		
		// 2. Print a Boolean Expression:
		//		a. Print the boolean expression age >= 16 to the console and note the results.
		//		a. Change the value of age to 18 and print again.
System.out.println(age >= 16);
age = 18;
System.out.println(age >= 16);

		
		// 3. Can you drive?
		//		a. Using a conditional, print one of the following:
		//				i. "You can drive" if age is greater than or equal to 16
		//				ii. "You cannot drive" otherwise
		//
		//		a. Change the value of age and rerun to see the result
	if(age >= 16) {
		System.out.println("You can drive");
	} else {System.out.println("You cannot drive");}
	age = 14;
	if(age >= 16) {
		System.out.println("You can drive");
	} else {System.out.println("You cannot drive");}

		
		// 4. Update Solution to Question 3 as follows:
		//		a. Add a new variable called hasLicense before the conditional.
		//		b. Change the boolean expression in the conditional to additionally 
		//				include the need for hasLicense to be true.
		//		c. Try changing the values of age and hasLicense and note the different results.
boolean hasLicense = true;
if(age >= 16 && hasLicense == true) {
	System.out.println("You can drive");
} else {System.out.println("You cannot drive");}
age = 18;
if(age >= 16 && hasLicense == true) {
	System.out.println("You can drive");
} else {System.out.println("You cannot drive");}
hasLicense = false;
if(age >= 16 && hasLicense == true) {
	System.out.println("You can drive");
} else {System.out.println("You cannot drive");}

		
		
		// 5. Milk?
		//		a. Create two new variables - costOfMilk and thirstLevel
		//		b. Create a new conditional that prints "Milk Please" if costOfMilk is less than 2.50 
		//				or if thirstLevel is greater than 6 and prints "No Thanks" otherwise.
		//		c. Change the values and note the different results.
double costOfMilk = 1;
int thirstLevel = 2;

if(costOfMilk < 2.5 || thirstLevel >6) {
	System.out.println("Milk Please");}
else {System.out.println("No Thanks");
}
	
		
		// 6. Cookie Distribution: 
		//			Note:  You will evenly distribute all of the cookies to the children 
		//					and as the adult you get to keep the remaining cookies for yourself.
		//
		//		a. Create two variables called numberOfCookies and numberOfChildren.
		//		b. Initialize the two variables to integer values.
		//		b. Use a conditional to print the following based on the following conditions:
		//				i. If there are 0 cookies remaining, print "Sad Face"
		//				ii. If there are less than 2 cookies, print "Yes!"
		//				iii. If there are less than 5 cookies, print "Whoohoooo!"
		//				iv. If there are 5 or more cookies, print "Jackpot!"
int numberOfCookies = 18;
int numberOfChildren = 6;
int remainingCookies = numberOfCookies % numberOfChildren;

if (remainingCookies == 0) {
	System.out.println("There are " + remainingCookies + " cookies left over....");
	System.out.println("Sad Face");}
else if (remainingCookies < 2) {
	System.out.println("There are " + remainingCookies + " cookies left over....");
	System.out.println("Yes");}
else if (remainingCookies < 5) {
	System.out.println("There are " + remainingCookies + " cookies left over....");
	System.out.println("Whoohoooo");}
else if (remainingCookies >= 5) {
	System.out.println("There are " + remainingCookies + " cookies left over....");
	System.out.println("Jackpot!");
}


		
				
		// 7.  Loyalty Member Program:
		//		a. Create a variable called loyaltyMemberStatus and assign the value "SILVER"
		//		b. Create a variable called loyaltyMemberDiscount and assign the value 0.0
		//		c. Using a switch, set the value of loyaltyMemberDiscount based on 
		//				the following loyaltyMemberStatus scale: 
		//				i. "SILVER" is 0.10
		//				ii. "GOLD" is 0.15
		//				iii. "PLATINUM" is 0.25
		
String loyaltyMemberStatus = "GOLD";
double loyaltyMemberDiscount = 0.0;

switch (loyaltyMemberStatus) {
case "SILVER":
	loyaltyMemberDiscount = .10;
	break;
case "GOLD":
	loyaltyMemberDiscount = .15;
	break;
case "PLATINUM":
	loyaltyMemberDiscount = .25;
	break;
}
System.out.println(loyaltyMemberStatus + " " + loyaltyMemberDiscount);

		
		// 8. Using the Loyalty Member Program variables from Question 7, do the following:
		//		a. Create a variable called billTotal and assign a value
		//		b. Create a variable called adjustedTotal and assign it the billTotal minus 
		//				the loyaltyMemberDiscount percent of the billTotal
		//		c. If the adjustedBillTotal is greater than $500 upgrade the 
		//				loyaltyMemberStatus from SILVER to GOLD or from GOLD to PLATINUM
double billTotal = 600;
double adjustedBillTotal = billTotal - billTotal * loyaltyMemberDiscount;

if(adjustedBillTotal > 500) {
	if(loyaltyMemberStatus == "SILVER") {
		loyaltyMemberStatus = "GOLD";
		System.out.println("Your new Member Status is " + loyaltyMemberStatus);
}	else if(loyaltyMemberStatus == "GOLD") {
		loyaltyMemberStatus = "PLATINUM";
		System.out.println("Your new Member Status is " + loyaltyMemberStatus);
}	
}	else {System.out.println("Your Member Status has not changed");}	
		// 9. Login -- username & password:
		//		a. Create two variables, username and password
		//		b. Create a conditional that prints one of the following:
		//				i. "login successful" if the username is "Tommy123" and the password is "12345"
		//				ii. "access denied" otherwise
String username = "Tommy123";
String password = "12345";

if (username.equals("Tommy123") && password.equals("12345")) {
	System.out.println("login successful");
} else {System.out.println("access denied");}

		
		
		//
		// LOOPS:
		//
		
		// 10. Write a for loop that prints each number from 0 to 9
for (int i = 0; i<10; i++) {
	System.out.println(i);
}
		
		
		// 11. Write a for loop that prints each number from 10 to 0 backwards
for (int i = 10; i>-1; i--) {
	System.out.println(i);
}
		
		
		// 12. Write a for loop that prints every other number from 0 to 100
for (int i = 0; i<101; i += 2 ) {
	System.out.println(i);
}
		
		
		// 13. Write a for loop that iterates from 0 to 100 and prints 
		//			"EVEN" if the number is even and "ODD" if it's odd
for (int i = 0; i<101; i++ ) {
	if(i%2 == 0) {System.out.println(i + " EVEN");
} else {System.out.println(i + " ODD");}
}
		
		// 14. Write a while loop that starts at 100 and iterates backwards by 1 until it reaches 0
		//			within the loop, divide each number by 3 and print the remainder to the console.
int i = 101;
while (i > 0) {
	i--;
	System.out.println(i%3);
}


		

		
	}

}