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idk ive done too much

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Brett Bender
2022-12-11 21:40:09 -06:00
parent 9a1bc9cfb5
commit 4ee4e7551a
59 changed files with 3553 additions and 13 deletions
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LAB-6/.classpath Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17">
<attributes>
<attribute name="module" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4">
<attributes>
<attribute name="module" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="output" path="bin"/>
</classpath>

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LAB-6/.project Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>LAB-6</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

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LAB-6/src/module-info.java Normal file
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/**
* @author brett
*
*/
module uwstout.courses.cs144 {
requires junit;
}

197
LAB-6/src/uwstout/courses/cs144/labs/lab6/LoanInfo.java Normal file
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package uwstout.courses.cs144.labs.lab6;
import java.text.DecimalFormat;
/**
* Represents information for a possible loan, specifically the credit score,
* desired amount, and number of years.
*
* @author Brett Bender
* @version 2022.11.08
*/
public class LoanInfo {
/*
* Constants
*/
// Initialization
private static final int MIN_VALID_CREDIT_SCORE = 300;
private static final int MAX_VALID_CREDIT_SCORE = 850;
private static final double MIN_LOAN_AMOUNT = 10000.00;
private static final int MIN_LOAN_YEARS = 5;
// Borders
/// Anything 300-579 is poor
private static final String POOR_CREDIT_STRING = "Poor";
/// Anything 580-669 is fair
private static final int FAIR_CREDIT_BOUNDARY = 580;
private static final String FAIR_CREDIT_STRING = "Fair";
/// Anything 670-739 is good
private static final int GOOD_CREDIT_BOUNDARY = 670;
private static final String GOOD_CREDIT_STRING = "Good";
/// Anything 740-799 is very good
private static final int VGOOD_CREDIT_BOUNDARY = 740;
private static final String VGOOD_CREDIT_STRING = "Very Good";
/// Anything 800-850 is exceptional
private static final int EXCEPTIONAL_CREDIT_BOUNDARY = 800;
private static final String EXCEPTIONAL_CREDIT_STRING = "Exceptional";
// Approval Values
private static final int INSTANT_APPROVAL_CREDIT_SCORE = GOOD_CREDIT_BOUNDARY;
private static final int MIN_APPROVAL_CREDIT_SCORE = FAIR_CREDIT_BOUNDARY;
private static final double MAX_APPROVAL_LOAN_AMOUNT = 100000.00;
// Interest Rates
private static final double YEAR_10_IR = 0.06;
private static final double YEAR_15_IR = 0.05;
private static final double YEAR_30_IR = 0.04;
private static final double YEAR_OTHER_IR = 0.08;
/*
* Class Members
*/
private int creditScore;
private double amount;
private int years;
/**
* Creates a new instance of the LoanInfo class
*
* @param nCreditScore The credit score of the Loan applicant
* @param nAmount The dollar amount of the Loan
* @param nYears The number of years of the Loan
*/
public LoanInfo(int nCreditScore, double nAmount, int nYears) {
// Ensure credit score is between MIN and MAX, otherwise set it to 300.
creditScore = (nCreditScore >= MIN_VALID_CREDIT_SCORE
&& nCreditScore <= MAX_VALID_CREDIT_SCORE) ? nCreditScore
: MIN_VALID_CREDIT_SCORE;
amount = (nAmount >= MIN_LOAN_AMOUNT) ? nAmount : MIN_LOAN_AMOUNT;
years = (nYears >= MIN_LOAN_YEARS) ? nYears : MIN_LOAN_YEARS;
}
/**
* Get the credit score of the Loan applicant
*
* @return The Loan applicant's credit score
*/
public int getCreditScore() {
return creditScore;
}
/**
* Get the dollar amount of the loan
*
* @return The dollar amount of the loan
*/
public double getAmount() {
return amount;
}
/**
* Get the number of years of the loan
*
* @return The number of years of the loan
*/
public int getYears() {
return years;
}
/**
* Determines if the loan should be approved based on the information
* provided. Is either approved immediately if the credit score is over the
* {@link #INSTANT_APPROVAL_CREDIT_SCORE} or if the credit score is over the
* {@link #MIN_APPROVAL_CREDIT_SCORE} and the loan amount is below the
* {@link #MAX_APPROVAL_LOAN_AMOUNT}.
*
* @return If the loan should be approved.
*/
public boolean canApprove() {
// Check if the credit score is above the instant approval credit score
if (creditScore >= INSTANT_APPROVAL_CREDIT_SCORE) {
return true;
}
// Check if the credit score is above the minimum approval, and the loan
// amount is below the maximum
if (creditScore >= MIN_APPROVAL_CREDIT_SCORE
&& amount < MAX_APPROVAL_LOAN_AMOUNT) {
return true;
}
return false;
}
/**
* Gets the interest rate based on the number of years the loan is for.
* Either, {@link #YEAR_10_IR}, {@link #YEAR_15_IR}, {@link #YEAR_30_IR}, or
* {@link #YEAR_OTHER_IR}.
*
* @return The interest rate of the loan.
*/
public double getInterestRate() {
double result;
switch (years) {
case 10:
result = YEAR_10_IR;
break;
case 15:
result = YEAR_15_IR;
break;
case 30:
result = YEAR_30_IR;
break;
default:
result = YEAR_OTHER_IR;
break;
}
return result;
}
/**
* Gets the credit category of the loan based on the credit score of the
* applicant.
*
* @return The credit category
*/
public String getCreditCategory() {
String retString = "";
if (creditScore >= EXCEPTIONAL_CREDIT_BOUNDARY) {
retString = EXCEPTIONAL_CREDIT_STRING;
} else if (creditScore >= VGOOD_CREDIT_BOUNDARY) {
retString = VGOOD_CREDIT_STRING;
} else if (creditScore >= GOOD_CREDIT_BOUNDARY) {
retString = GOOD_CREDIT_STRING;
} else if (creditScore >= FAIR_CREDIT_BOUNDARY) {
retString = FAIR_CREDIT_STRING;
} else {
retString = POOR_CREDIT_STRING;
}
return retString;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append(DecimalFormat.getCurrencyInstance().format(amount));
builder.append(" @ ");
builder.append(
DecimalFormat.getPercentInstance().format(getInterestRate()));
builder.append(" for ");
builder.append(years);
builder.append(" years, ");
builder.append(getCreditCategory());
builder.append(" credit: ");
builder.append(canApprove() ? "Approved" : "Denied");
return builder.toString();
}
}

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LAB-6/src/uwstout/courses/cs144/labs/lab6/LoanInfoTest.java Normal file
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package uwstout.courses.cs144.labs.lab6;
import static org.junit.Assert.assertEquals;
import org.junit.Before;
import org.junit.Test;
/**
* Tests the {@link LoanInfo} class
*
* @author Brett Bender
* @version 2022.11.08
*/
public class LoanInfoTest {
private static final double DELTA = 0.01;
private LoanInfo l1;
private LoanInfo l2;
private LoanInfo l3;
private LoanInfo l4;
private LoanInfo l5;
private LoanInfo l6;
private LoanInfo l7;
/**
* Sets the LoanInfoTest class up for testing.
*
* @throws Exception
*/
@Before
public void setUp() throws Exception {
l1 = new LoanInfo(0, 0, 0);
l2 = new LoanInfo(600, 15000, 10);
l3 = new LoanInfo(900, 30000, 15);
l4 = new LoanInfo(850, 100000, 8);
l5 = new LoanInfo(580, 150000, 10);
l6 = new LoanInfo(600, 75000, 30);
l7 = new LoanInfo(580, 100000, 10);
}
/**
* Tests the LoanInfo constructor
*/
@Test
public void testLoanInfo() {
assertEquals(300, l1.getCreditScore());
assertEquals(10000, l1.getAmount(), DELTA);
assertEquals(5, l1.getYears());
assertEquals(600, l2.getCreditScore());
assertEquals(15000, l2.getAmount(), DELTA);
assertEquals(10, l2.getYears());
assertEquals(300, l3.getCreditScore());
assertEquals(30000, l3.getAmount(), DELTA);
assertEquals(15, l3.getYears());
assertEquals(850, l4.getCreditScore());
assertEquals(100000, l4.getAmount(), DELTA);
assertEquals(8, l4.getYears());
assertEquals(580, l5.getCreditScore());
assertEquals(150000, l5.getAmount(), DELTA);
assertEquals(10, l5.getYears());
assertEquals(600, l6.getCreditScore());
assertEquals(75000, l6.getAmount(), DELTA);
assertEquals(30, l6.getYears());
assertEquals(580, l7.getCreditScore());
assertEquals(100000, l7.getAmount(), DELTA);
assertEquals(10, l7.getYears());
}
/**
* Tests the canApprove method
*/
@Test
public void testCanApprove() {
assertEquals(false, l1.canApprove());
assertEquals(true, l2.canApprove());
assertEquals(false, l3.canApprove());
assertEquals(true, l4.canApprove());
assertEquals(false, l5.canApprove());
assertEquals(true, l6.canApprove());
assertEquals(false, l7.canApprove());
}
/**
* Tests the getInterestRate method
*/
@Test
public void testGetInterestRate() {
assertEquals(0.08, l1.getInterestRate(), DELTA);
assertEquals(0.06, l2.getInterestRate(), DELTA);
assertEquals(0.05, l3.getInterestRate(), DELTA);
assertEquals(0.08, l4.getInterestRate(), DELTA);
assertEquals(0.06, l5.getInterestRate(), DELTA);
assertEquals(0.04, l6.getInterestRate(), DELTA);
assertEquals(0.06, l7.getInterestRate(), DELTA);
}
/**
* Tests the getCreditCategory method
*/
@Test
public void testGetCreditCategory() {
LoanInfo pCLoanInfo = new LoanInfo(300, 0, 0);
assertEquals("Poor", pCLoanInfo.getCreditCategory());
LoanInfo fCLoanInfo = new LoanInfo(580, 0, 0);
assertEquals("Fair", fCLoanInfo.getCreditCategory());
LoanInfo gCLoanInfo = new LoanInfo(670, 0, 0);
assertEquals("Good", gCLoanInfo.getCreditCategory());
LoanInfo vgCLoanInfo = new LoanInfo(740, 0, 0);
assertEquals("Very Good", vgCLoanInfo.getCreditCategory());
LoanInfo eCLoanInfo = new LoanInfo(800, 0, 0);
assertEquals("Exceptional", eCLoanInfo.getCreditCategory());
}
/**
* Tests the toString method
*/
@Test
public void testToString() {
assertEquals("$10,000.00 @ 8% for 5 years, Poor credit: Denied",
l1.toString());
assertEquals("$15,000.00 @ 6% for 10 years, Fair credit: Approved",
l2.toString());
assertEquals("$30,000.00 @ 5% for 15 years, Poor credit: Denied",
l3.toString());
assertEquals(
"$100,000.00 @ 8% for 8 years, Exceptional credit: Approved",
l4.toString());
assertEquals("$150,000.00 @ 6% for 10 years, Fair credit: Denied",
l5.toString());
assertEquals("$75,000.00 @ 4% for 30 years, Fair credit: Approved",
l6.toString());
assertEquals("$100,000.00 @ 6% for 10 years, Fair credit: Denied",
l7.toString());
}
}