## Java - If Labs 1 - 3

**1. Discount**

Make a class called Discount. Get the input (double) bill. Then determine the amount of discount a person should receive. If the bill is more than 2000, then the person should receive a 15% discount. If the bill is 2000 dollars or less, the person does not receive a discount of any kind.

//SAMPLE CODE

//DECLARE VARIABLES

double bill;

Scanner keyboard = new Scanner(System.in);

//GET INPUT FOR BILL

//MAKE DECISIONS (CHANGE BILL)

//IF BILL > 2000 BILL = BILL *.85

//PRINT OUT RESULTS

System.out.println("Your final bill is " + bill);

**2. OddsOrEven**

Make a class called OddsOrEven. Write a program that reads in a number and determines if that number is even or odd. An even number has a remainder of zero when being divided by two. An odd number is any number that does not have a remainder of zero when being divided by two.

num%2 == 1 ---> is odd

num%2 == 0 ---> is even

//SAMPLE CODE

//DECLARE VARIABLES

int num;

Scanner keyboard = new Scanner(System.in);

//GET INPUT

//MAKE DECISIONS AND PRINTOUT RESULTS

//IF ODD PRINT OUT "NUMBER IS ODD"

//IF EVEN PRINT OUT "NUMBER IS EVEN"

**3. TruckDistance**

Make a class called TruckDistance. The Jones Trucking Company tracks the location of each of its trucks on a grid similar to an (x, y) plane. The home office is at location (0, 0). Read the coordinates of truck A and the coordinates of truck B and determine which is closer to the office.

Distance formula: Math.sqrt( Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2) )

Each collection contains 4 integers: the x-coordinate and then the y-coordinate of truck A followed by the x-coordinate and then the y-coordinate of truck B.

//SAMPLE CODE

//DECLARE VARIABLES

double truck1X;

double truck1Y;

double truck2X;

double truck2Y;

double truck1Distance;

double truck2Distance;

Scanner keyboard = new Scanner(System.in);

//GET INPUT FOR BOTH TRUCKS X AND Y'S

//MAKE DECISIONS AND PRINTOUT RESULTS

//IF TRUCK1DISTANCE < TRUCK2DISTANCE PRINTOUT "TRUCK 1 IS CLOSER."

//IF TRUCK2DISTANCE < TRUCK1DISTANCE PRINTOUT "TRUCK 2 IS CLOSER."