Money class in java Here is the test.java code: Required package name: assign2 R

Question

Money class in java

Here is the test.java code:

Required package name: assign2 Required class name: Money File to submit: Money.java Here is the UML class diagram for the Money class Money dollars: int cents int add(Money):void subtract (Money): void compareTo(Money): int equals(Money) boolean toString():String Money (int, int) Money (Money) adjust void Class description instance data: There are two integer values for the instance data representing the dollars and cents. These must be declared as private. Instance methods: There are eight methods in the class. All methods are public accept the adjust method. DO NOT add any additional methods. Constructors 1. Money (int dollarsIn, int centsIn) Set the dollars and cents to the values of the parameters. If either input is negative, set the dollars and cents to 0. Invoke the adjust method to make sure that the dollars and cents are valid. 2. Money (Money other) Set the dollars and cents to the values in the parameter. Mutators

Explanation / Answer

import static org.junit.Assert.*; import org.junit.Test; public class MoneyTest { @Test public void testMonwy1() { Money moneyObj = new Money(7, 33); assertEquals ("$7.33", moneyObj.toString()); moneyObj = new Money (3, 55); assertEquals ("$3.55", moneyObj.toString ()); } @Test public void testMoney2() { Money moneyObj = new Money(7, 33); Money moneyObj2 = new Money (moneyObj); assertEquals ("$7.33", moneyObj2.toString()); moneyObj2 = new Money (new Money (10, 10)); assertEquals ("$10.10", moneyObj2.toString()); } @Test public void testToString() { Money moneyObj = new Money(7, 0); assertEquals ("$7.00", moneyObj.toString()); moneyObj = new Money(0, 7); assertEquals ("$0.07", moneyObj.toString()); moneyObj = new Money(0, 0); assertEquals ("$0.00", moneyObj.toString()); } @Test public void testEquals () { Money moneyObj = new Money(7, 33); Money moneyObj2 = new Money (moneyObj); assertTrue (moneyObj.equals(moneyObj)); assertTrue (moneyObj.equals(moneyObj2)); assertTrue (moneyObj2.equals(moneyObj)); moneyObj2 = new Money (7, 34); assertFalse (moneyObj.equals(moneyObj2)); moneyObj2 = new Money (8, 33); assertFalse (moneyObj.equals(moneyObj2)); } @Test public void testCompareTo () { Money moneyObj = new Money(7, 33); Money moneyObj2 = new Money (moneyObj); assertEquals (0, moneyObj.compareTo(moneyObj)); assertEquals (0, moneyObj2.compareTo(moneyObj)); assertEquals (0, moneyObj.compareTo(moneyObj2)); moneyObj2 = new Money (8, 33); assertTrue (moneyObj.compareTo(moneyObj2) < 0); assertTrue (moneyObj2.compareTo(moneyObj) > 0); moneyObj2 = new Money (7, 34); assertTrue (moneyObj.compareTo(moneyObj2) < 0); assertTrue (moneyObj2.compareTo(moneyObj) > 0); } @Test public void testAdd1 () { Money money1 = new Money(0, 0); Money money2 = new Money(1, 22); money1.add(money2);; assertEquals ("$1.22", money1.toString()); money1.add(money1);; assertEquals ("$2.44", money1.toString()); } @Test public void testAdd2 () { Money money1 = new Money(10, 50); Money money2 = new Money(10, 60); money1.add(money2);; assertEquals ("$21.10", money1.toString()); money2 = new Money(10, 90); money1.add(money2);; assertEquals ("$32.00", money1.toString()); } @Test public void testSub1 () { Money money1 = new Money(10, 50); Money money2 = new Money(1, 22); money1.subtract(money2); assertEquals ("$9.28", money1.toString()); money1.subtract(new Money (4, 3)); assertEquals ("$5.25", money1.toString()); money1.subtract(money1); assertEquals ("$0.00", money1.toString()); } @Test public void testSub2 () { Money money1 = new Money(10, 50); Money money2 = new Money(11, 22); money2.subtract(money1); assertEquals ("$0.72", money2.toString()); money2.subtract(new Money (4, 3)); assertEquals ("$0.00", money2.toString()); money2.subtract(money1); assertEquals ("$0.00", money2.toString()); } @Test public void testMonwy3() { Money moneyObj = new Money(7, 333); assertEquals ("$10.33", moneyObj.toString()); moneyObj = new Money (3, -255); assertEquals ("$0.45", moneyObj.toString ()); moneyObj = new Money (-3, -155); assertEquals ("$0.00", moneyObj.toString ()); } }

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