feat: added JSON file and DataProvider file for Chelsea

lesson_05/quiz/src/lesson5.ts

@@ -38,7 +38,7 @@ export class Lesson5 {
         [AnswerChoice.C, "To insert an image"],
         [AnswerChoice.D, "To create a paragraph"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -52,7 +52,7 @@ export class Lesson5 {
         [AnswerChoice.C, "alt"],
         [AnswerChoice.D, "href"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.C,
     );
   }
 
@@ -66,7 +66,7 @@ export class Lesson5 {
         [AnswerChoice.C, "<div>"],
         [AnswerChoice.D, "<link>"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -80,7 +80,7 @@ export class Lesson5 {
         [AnswerChoice.C, "<span>"],
         [AnswerChoice.D, "<br>"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -94,7 +94,7 @@ export class Lesson5 {
         [AnswerChoice.C, "Computer Style Sheets"],
         [AnswerChoice.D, "Cascading System Sheets"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -108,7 +108,7 @@ export class Lesson5 {
         [AnswerChoice.C, "text-color"],
         [AnswerChoice.D, "background-color"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -122,7 +122,7 @@ export class Lesson5 {
         [AnswerChoice.C, "/* this is a comment */"],
         [AnswerChoice.D, "<!-- this is a comment -->"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.C,
     );
   }
 
@@ -136,7 +136,7 @@ export class Lesson5 {
         [AnswerChoice.C, "text-size"],
         [AnswerChoice.D, "text-style"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -150,7 +150,7 @@ export class Lesson5 {
         [AnswerChoice.C, "inline-block"],
         [AnswerChoice.D, "none"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.B,
     );
   }
 
@@ -164,7 +164,7 @@ export class Lesson5 {
         [AnswerChoice.C, "<stylesheet link='styles.css'>"],
         [AnswerChoice.D, "<css href='styles.css'>"],
       ]),
-      AnswerChoice.UNANSWERED,
+      AnswerChoice.A,
     );
   }
 }

lesson_06/expression/src/expression_calculator.ts

@@ -1,8 +1,19 @@
 export class ExpressionCalculator {
   /** Returns the calculation of ((a + b) * c) / d^e */
   calculate(a: number, b: number, c: number, d: number, e: number): number {
-    // Implement your code here to return the correct value.
-    return 0;
+    return this.divide(this.multiply(this.add(a, b), c), this.pow(d, e));
+  }
+
+  add(a: number, b: number): number {
+    return a + b;
+  }
+
+  multiply(value: number, c: number): number {
+    return value * c;
+  }
+
+  divide(value: number, d: number): number {
+    return value / d;
   }
 
   pow(base: number, exponent: number): number {

lesson_07/conditionals/src/lesson7.ts

@@ -7,6 +7,9 @@ import { computeLexicographicDistance } from "./util.js";
  * @return True if the age corresponds to a voting age and false otherwise.
  */
 export function canVote(age: number): boolean {
+  if (age >= 18) {
+    return true;
+  }
   return false;
 }
 
@@ -22,9 +25,13 @@ export function compareStrings(a: string, b: string): number {
   // if it is greater, and 0 if the strings are equal.
   const distance = computeLexicographicDistance(a, b);
 
-  // TODO(you): Finish this method.
-
-  return 0;
+  if (distance < 0) {
+    return -1;
+  } else if (distance > 0) {
+    return 1;
+  } else {
+    return 0;
+  }
 }
 
 /**
@@ -37,7 +44,29 @@ export function compareStrings(a: string, b: string): number {
  * @return The letter grade ("A+", "A", "A-", "B+", etc.).
  */
 export function convertGpaToLetterGrade(gpa: number): string {
-  return "F";
+  if (gpa == 4.0) {
+    return "A";
+  } else if (gpa <= 3.99 && gpa >= 3.7) {
+    return "A-";
+  } else if (gpa <= 3.69 && gpa >= 3.3) {
+    return "B+";
+  } else if (gpa <= 3.29 && gpa >= 3.0) {
+    return "B";
+  } else if (gpa <= 2.99 && gpa >= 2.7) {
+    return "B-";
+  } else if (gpa <= 2.69 && gpa >= 2.3) {
+    return "C+";
+  } else if (gpa <= 2.29 && gpa >= 2.0) {
+    return "C";
+  } else if (gpa <= 1.99 && gpa >= 1.7) {
+    return "C-";
+  } else if (gpa <= 1.69 && gpa >= 1.3) {
+    return "D+";
+  } else if (gpa <= 1.29 && gpa >= 1.0) {
+    return "D";
+  } else {
+    return "F";
+  }
 }
 
 /**
@@ -47,17 +76,25 @@ export function convertGpaToLetterGrade(gpa: number): string {
  * @return The factorial of n.
  */
 export function computeFactorial(n: number): number {
-  return 0;
+  if (n == 0 || n == 1) {
+    return 1;
+  } else if (n > 1) {
+    return n * computeFactorial(n - 1);
+  }
+  return n;
 }
-
 /**
  * Adds all of the provided values and returns the sum.
  *
  * @param values The values to sum.
  * @return The sum of all the values.
  */
 export function addNumbers(values: number[]): number {
-  return 0;
+  let sum = 0;
+  for (const value of values) {
+    sum += value;
+  }
+  return sum;
 }
 
 /**
@@ -67,7 +104,17 @@ export function addNumbers(values: number[]): number {
  * @return An array containing the first `n` Fibonacci values.
  */
 export function getFirstNFibonacciNumbers(n: number): number[] {
-  return [];
+  const fibArray: number[] = [];
+  let a = 0;
+  let b = 1;
+  let c: number;
+  while (fibArray.length < n) {
+    c = a;
+    a = b;
+    b = c + b;
+    fibArray.push(a);
+  }
+  return fibArray;
 }
 
 /**
@@ -92,11 +139,16 @@ export function binarySearch(
 
   const pivotIndex = Math.floor((start + end) / 2); // The index in the middle of the array.
 
-  // TODO(you): Finish implementing this algorithm
 
+  if (values[pivotIndex] == value) {
+    return pivotIndex;
+  } else if (values[pivotIndex] > value) {
+    return binarySearch(values, start, pivotIndex - 1, value);
+  } else {
+    return binarySearch(values, pivotIndex + 1, end, value);
+  }
   // If values[pivotIndex] is equal to value then return `pivotIndex`.
   // Else if values[pivotIndex] is greater than the value, then
   // call `binarySearch(values, start, pivotIndex - 1, value)` and return its value;
   // Else call `binarySearch(values, pivotIndex + 1, end, value)` and return its value.
-  return -1;
 }

lesson_09/types/types_app/src/main/java/com/codedifferently/lesson9/dataprovider/ChelseaOgbonniaProvider.java

@@ -0,0 +1,23 @@
+package com.codedifferently.lesson9.dataprovider;
+
+import java.util.Map;
+
+import org.springframework.stereotype.Service;
+
+@Service
+public class ChelseaOgbonniaProvider extends DataProvider {
+  public String getProviderName() {
+    return "chelseaogbonnia";
+  }
+
+  public Map<String, Class> getColumnTypeByName() {
+    return Map.of(
+        "column1", Boolean.class,
+        "column2", String.class,
+        "column3", Long.class,
+        "column4", Float.class,
+        "column5", Short.class,
+        "column6", Double.class,
+        "column7", Integer.class);
+  }
+}

lesson_09/types/types_app/src/main/resources/data/chelseaogbonnia.json

@@ -0,0 +1,92 @@
+[
+  {
+    "column1": "false",
+    "column2": "wyemiqc",
+    "column3": "7913473030711282688",
+    "column4": "1.8614628E38",
+    "column5": "4386",
+    "column6": "6.968862241086341E307",
+    "column7": "1475052651"
+  },
+  {
+    "column1": "false",
+    "column2": "xm6vs7e",
+    "column3": "2335425424589573632",
+    "column4": "4.2762104E37",
+    "column5": "1683",
+    "column6": "1.811140849460334E307",
+    "column7": "1209195687"
+  },
+  {
+    "column1": "true",
+    "column2": "zh01i84uv",
+    "column3": "6333972535042200576",
+    "column4": "2.2556577E38",
+    "column5": "2844",
+    "column6": "1.6951022043654575E308",
+    "column7": "1523085775"
+  },
+  {
+    "column1": "false",
+    "column2": "361pv72",
+    "column3": "3157565259847647232",
+    "column4": "2.3323055E38",
+    "column5": "10658",
+    "column6": "6.925332576553183E307",
+    "column7": "606901330"
+  },
+  {
+    "column1": "true",
+    "column2": "3sozwb",
+    "column3": "7571759049801341952",
+    "column4": "1.7445115E38",
+    "column5": "32321",
+    "column6": "1.5048343678097422E308",
+    "column7": "729461454"
+  },
+  {
+    "column1": "true",
+    "column2": "kpvif5ytmu6",
+    "column3": "9219750046175507456",
+    "column4": "1.8554071E37",
+    "column5": "3907",
+    "column6": "3.810850952045744E307",
+    "column7": "1877455265"
+  },
+  {
+    "column1": "false",
+    "column2": "mx0o5f",
+    "column3": "5732669568390959104",
+    "column4": "3.3571546E38",
+    "column5": "11344",
+    "column6": "1.5791425600565364E306",
+    "column7": "1198521383"
+  },
+  {
+    "column1": "false",
+    "column2": "ic8xp",
+    "column3": "8058294991460725760",
+    "column4": "1.0623648E38",
+    "column5": "19537",
+    "column6": "7.168009014976832E307",
+    "column7": "806176461"
+  },
+  {
+    "column1": "true",
+    "column2": "jh6513fuz",
+    "column3": "3050298536833992192",
+    "column4": "3.0041338E38",
+    "column5": "14100",
+    "column6": "1.347984905078725E308",
+    "column7": "552869949"
+  },
+  {
+    "column1": "true",
+    "column2": "p0tfc9w462",
+    "column3": "6108650764181306368",
+    "column4": "3.0027475E38",
+    "column5": "4463",
+    "column6": "9.346588542924494E306",
+    "column7": "20872235"
+  }
+]