// 6
int i = 5; int p =27;
for(int l = 23; l <p; l++){
    i*=(l-22);
}
System.out.print(i);

120
// 5
int i = 100;
double d = 4.55; double d2 = 3.75;
int j = (int) (d*100 + d2);

System.out.print(j);

458
//3 
int val = 205;
for(int i=0; i<5; i++) {
    val/=2;
}
System.out.print(val);

6
//4
int i = 3;
for(int j = 5;j > 0; j--){
    i+=i;
}
System.out.print(i);

96
  • 1: 2
  • 2: A and D
  • 3: 6
  • 4: 96
  • 5: 458
  • 6: 120

2006 - 1,2a,3a

  • Everitt and I pair coded this
  1. a. Everitt driver, Daniel navigator
  2. a. Daniel driver, Everitt navigator
// 2A
public double purchasePrice(double x){
    x *= 1.1; 
    return x;
}

purchasePrice(6.50);

7.15
// 3A
public class Customer {
    private String name;
    private int id;
    
    public Customer(String name, int idNum){
        this.name = name;
        this.id = idNum;
        // idNum = this.idNum;
    };

    public String getName(){
        return name;
    };

    public int getID(){
        return id;
    };

    public void compareCustomer(Customer x){
        System.out.println(id - x.id);
        // return (id - x.id);
    };
    
}

Customer c1 = new Customer("Smith", 1001);
Customer c2 = new Customer("Anderson", 1002);
Customer c3 = new Customer("Smith", 1003);

c1.compareCustomer(c1);
c1.compareCustomer(c2);
c1.compareCustomer(c3);

0
-1
-2

Vocab used in this unit

  • this keyword - Used in the Customer class, the this keyword has the object refer to its own attributes to modify or get them.
  • Constructor - Creates an object using given parameters, and assigns them to the object's attributes. It has no return because it is only used to create an object and not to run a method or a calculation.
  • Comparing numbers / objects - Seen in Customer.compareCustomer, this method uses the this keyword to get and compare the customer's ID and another customer's ID through subtraction.