/** Here's a sample solution to Tutorial 5, by head TA Adam Foster */

public class Cupboard {
	// instance variables:
	private int amountOfFruit = 0;  // in pieces
	
	// Class variables
	private static int amountOfBread = 0;  // in slices
	private static int amountOfPB = 0;  // in grams
		
		
	// purchase x pieces of fruit
	public void littleShop(int x) {
		amountOfFruit += x;
	}
	
	
	// buy some groceries
	public void bigShop() {
		amountOfBread += 23;
		amountOfPB += 1000;
		amountOfFruit += 5;
	}
	
	
	// eat a meal
	public void eatMeal() {
		amountOfBread -= 2;
		amountOfPB -= 10;
		amountOfFruit--;	
	}
	
	
	// returns whether or not there is enough food
	// for a meal in the cupboard
	public boolean enoughForMeal() {
		return(amountOfBread>=2 && amountOfFruit>=1 && amountOfPB>=10);
	}
	
	
	// throw out all shared items (Class items)
	public static void cleanCommunalCupboard() {
		amountOfBread = 0;
		amountOfPB = 0;
	}
	
	
	// clean everything out of the cupboard
	public void clean() {
		cleanCommunalCupboard();
		amountOfFruit = 0;
	}
}
==========================================================


public class T5Driver {
	public static void main(String [] args) {
	
		// create one cupboard for a student
		Cupboard student1 = new Cupboard();
		
		// it will be empty, so there shouln't be enough for a meal
		System.out.println(student1.enoughForMeal());
		
		// do some shopping
		student1.bigShop();
		
		// we should have for student1:
		// Bread = 23, PB = 1000, Fruit = 5  -> enough!
		System.out.println(student1.enoughForMeal());
		student1.eatMeal();
		
		// we should have for student1:
		// Bread = 21, PB = 990, Fruit = 4  -> enough!
		System.out.println(student1.enoughForMeal());
		Cupboard.cleanCommunalCupboard();
		
		// we should have for student1:
		// Bread = 0, PB = 0, Fruit = 4  -> not enough!
		System.out.println(student1.enoughForMeal());
		
		
		// create a second cupboard for a second student.
		// remember, static items are SHARED among all cupboards
		Cupboard student2 = new Cupboard();
		
		// we should have for student2:
		// Bread = 0, PB = 0, Fruit = 0  -> not enough!
		System.out.println(student2.enoughForMeal());
		student2.bigShop();
		
		// we should have for student2:
		// Bread = 23, PB = 1000, Fruit = 5  -> enough!
		System.out.println(student2.enoughForMeal());
		student2.eatMeal();
		
		// we should have for student2:
		// Bread = 21, PB = 990, Fruit = 4  -> enough!
		System.out.println(student2.enoughForMeal());
		student2.eatMeal();
		
		// we should have for student2:
		// Bread = 19, PB = 980, Fruit = 3  -> enough!
		System.out.println(student2.enoughForMeal());
		student2.eatMeal();
		
		// we should have for student2:
		// Bread = 17, PB = 970, Fruit = 2  -> enough!
		System.out.println(student2.enoughForMeal());
		student2.eatMeal();
		
		// we should have for student2:
		// Bread = 15, PB = 960, Fruit = 1  -> enough!
		System.out.println(student2.enoughForMeal());
		student2.eatMeal();
		
		// we should have for student2:
		// Bread = 13, PB = 950, Fruit = 0  -> not enough!
		System.out.println(student2.enoughForMeal());
		
		// we should have for student1:  
		// Bread = 13, PB = 950, Fruit = 4  -> enough!
		System.out.println(student1.enoughForMeal());
		
	}
}

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