feat : lab3 complete - ENE212-0085/2023

starter/lab3_task1.php

@@ -3,68 +3,102 @@
  * ICS 2371 — Lab 3: Control Structures I
  * Task 1: Simple if and if-else — Warm-Up Exercises [5 marks]
  *
- * @author     [Your Full Name]
- * @student    [Your Reg Number, e.g. SCT212-XXXX/2024]
+ * @author     [wayne naum ]
+ * @student    [ENE 212-0085/2023]
  * @lab        Lab 3 of 14
  * @unit       ICS 2371
  * @date       [Date completed]
  */
 
-// ══════════════════════════════════════════════════════════════
+// ==========================================
 // EXERCISE A — Temperature Alert System
-// ══════════════════════════════════════════════════════════════
-// Declare $temperature = 39.2
-// Use separate if statements (not if-else) to print:
-//   "Normal"            if temp is between 36.1 and 37.5 inclusive
-//   "Fever"             if temp > 37.5
-//   "Hypothermia Warning" if temp < 36.1
-// Test with: 36.8, 39.2, 34.5 — screenshot each
+// ==========================================
+echo "<h3>Exercise A</h3>";
 
-// TODO: Exercise A — your code here
+// 1. Declare the variable (Starting with the first test value)
+$temperature = 34.5; 
 
+// 2. Check if Normal (between 36.1 and 37.5 inclusive)
+if ($temperature >= 36.1 && $temperature <= 37.5) {
+    echo "Normal<br>";
+}
 
-// ══════════════════════════════════════════════════════════════
-// EXERCISE B — Even or Odd
-// ══════════════════════════════════════════════════════════════
-// Declare $number = 47
-// Use if-else to print "$number is EVEN" or "$number is ODD"
-// Also check divisibility by 3, by 5, and by both 3 and 5 — one line each
+// 3. Check if Fever (greater than 37.5)
+if ($temperature > 37.5) {
+    echo "Fever<br>";
+}
 
-// TODO: Exercise B — your code here
+// 4. Check for Hypothermia (less than 36.1)
+if ($temperature < 36.1) {
+    echo "Hypothermia Warning<br>";
+}
 
+echo "<hr>"; 
+// ==========================================
+// EXERCISE B — Even or Odd
+// ==========================================
+echo "<h3>Exercise B</h3>";
 
-// ══════════════════════════════════════════════════════════════
-// EXERCISE C — Comparison Chain
-// ══════════════════════════════════════════════════════════════
-// Run this code EXACTLY as written.
-// Record all six outputs in your report and explain each result.
+// 1. Declare the variable
+$number = 47;
 
-$x = 10; $y = "10"; $z = 10.0;
+// 2. Check if Even or Odd using an if-else statement
+if ($number % 2 == 0) {
+    echo "$number is EVEN<br>";
+} else {
+    echo "$number is ODD<br>";
+}
 
-var_dump($x == $y);   // A: ?
-var_dump($x === $y);  // B: ?
-var_dump($x == $z);   // C: ?
-var_dump($x === $z);  // D: ?
-var_dump($y === $z);  // E: ?
-var_dump($x <=> $y);  // F: spaceship — what type? what value?
+// 3. Divisibility checks (using separate if statements)
+if ($number % 3 == 0) {
+    echo "$number is divisible by 3<br>";
+}
+if ($number % 5 == 0) {
+    echo "$number is divisible by 5<br>";
+}
+if ($number % 3 == 0 && $number % 5 == 0) {
+    echo "$number is divisible by both 3 and 5<br>";
+}
 
-// Your explanation of each result goes in your PDF report (not here).
+echo "<hr>"; 
+// ==========================================
+// EXERCISE C — Comparison Chain
+// ==========================================
+echo "<h3>Exercise C</h3>";
+
+$x = 10; 
+$y = "10"; 
+$z = 10.0;
 
+var_dump($x == $y);  echo "<br>";  // A
+var_dump($x === $y); echo "<br>";  // B
+var_dump($x == $z);  echo "<br>";  // C
+var_dump($x === $z); echo "<br>";  // D
+var_dump($y === $z); echo "<br>";  // E
+var_dump($x <=> $y); echo "<br>";  // F
 
-// ══════════════════════════════════════════════════════════════
+echo "<hr>";
+// ==========================================
 // EXERCISE D — Null & Default Values
-// ══════════════════════════════════════════════════════════════
-// Run this code as written, then extend it as instructed below.
+// ==========================================
+echo "<h3>Exercise D</h3>";
 
 $username = null;
-$display  = $username ?? "Guest";
+$display = $username ?? "Guest";
 echo "Welcome, $display<br>";
 
-// Chained null coalescing
 $config_val = null;
-$env_val    = null;
-$default    = "system_default";
-$result     = $config_val ?? $env_val ?? $default;
+$env_val = null;
+$default = "system_default";
+$result = $config_val ?? $env_val ?? $default;
 echo "Config: $result<br>";
 
-// TODO: Add one more chained ?? example of your own and explain it in your report.
+// Custom Chained Example 
+echo "<br><b>Custom Example:</b><br>";
+$user_theme_preference = null;
+$system_dark_mode = null;
+$fallback_theme = "light_mode";
+
+// It checks preference first, then system, then falls back to default
+$active_theme = $user_theme_preference ?? $system_dark_mode ?? $fallback_theme;
+echo "Active Theme: $active_theme<br>";

starter/lab3_task2.php

@@ -7,60 +7,74 @@
  * report BEFORE writing any code below. Marks are awarded for all
  * three components: pseudocode, flowchart, and working code.
  *
- * @author     [Your Full Name]
- * @student    [Your Reg Number, e.g. SCT212-XXXX/2024]
+ * @author     [wayne naum]
+ * @student    [ENE212-0060/2023]
  * @lab        Lab 3 of 14
  * @unit       ICS 2371
  * @date       [Date completed]
  */
 
-// ── Test Data Set A (change values to run other test sets) ─────────────────
-$name  = "Your Name";
-$cat1  = 8;  // out of 10
-$cat2  = 7;  // out of 10
-$cat3  = 9;  // out of 10
-$cat4  = 6;  // out of 10
-$exam  = 52; // out of 60
+echo "<h3>Task 2: Grade Classification System</h3>";
 
-// ── Grade Rules (implement using if-elseif-else, ordered highest first) ────
-// A  (Distinction):    Total >= 70
-// B+ (Credit Upper):   Total >= 65
-// B  (Credit Lower):   Total >= 60
-// C+ (Pass Upper):     Total >= 55
-// C  (Pass Lower):     Total >= 50
-// D  (Marginal Pass):  Total >= 40
-// E  (Fail):           Total <  40
+// ==========================================
+// 1. INPUTS (Currently set to Test Set A)
+// ==========================================
+$cat1 = 0;
+$cat2 = 0;
+$cat3 = 0;
+$cat4 = 0;
+$exam = 15;
 
-// ── Eligibility Rule (implement using nested if) ───────────────────────────
-// Must have attended at least 3 of 4 CATs (CAT score > 0 counts as attended)
-// AND exam score >= 20
-// Otherwise: "DISQUALIFIED — Exam conditions not met"
+// ==========================================
+// 2. SEQUENCE: Calculations
+// ==========================================
+$total = $cat1 + $cat2 + $cat3 + $cat4 + $exam;
+$cats_attended = 0;
 
-// ── Supplementary Rule (implement using ternary) ──────────────────────────
-// If grade is D: "Eligible for Supplementary Exam"
-// Otherwise:     "Not eligible for supplementary"
+if ($cat1 > 0) { $cats_attended++; }
+if ($cat2 > 0) { $cats_attended++; }
+if ($cat3 > 0) { $cats_attended++; }
+if ($cat4 > 0) { $cats_attended++; }
 
-// ── STEP 1: Compute total ─────────────────────────────────────────────────
-// TODO: compute $total
+echo "<strong>Scores:</strong> CATs Attended: $cats_attended/4 | Exam: $exam | Total Score: $total/100<br><br>";
 
+// ==========================================
+// 3. SELECTION: Eligibility & Grading
+// ==========================================
+if ($cats_attended >= 3 && $exam >= 20) {
+
+    // --- Grade Classification (if-elseif-else) ---
+    if ($total >= 70) {
+        $grade = "A";
+        $desc = "Distinction";
+    } elseif ($total >= 65) {
+        $grade = "B+";
+        $desc = "Credit Upper";
+    } elseif ($total >= 60) {
+        $grade = "B";
+        $desc = "Credit Lower";
+    } elseif ($total >= 55) {
+        $grade = "C+";
+        $desc = "Pass Upper";
+    } elseif ($total >= 50) {
+        $grade = "C";
+        $desc = "Pass Lower";
+    } elseif ($total >= 40) {
+        $grade = "D";
+        $desc = "Marginal Pass";
+    } else {
+        $grade = "E";
+        $desc = "Fail";
+    }
 
-// ── STEP 2: Count CATs attended ───────────────────────────────────────────
-// TODO: compute $cats_attended (each CAT > 0 counts as attended)
+    echo "<strong>Status:</strong> Grade $grade ($desc)<br>";
 
+    // --- Supplementary Check (Ternary Operator) ---
+    $supp_status = ($grade === "D") ? "Eligible for Supplementary Exam" : "Not eligible for supplementary";
+    echo "<strong>Supplementary:</strong> $supp_status<br>";
 
-// ── STEP 3: Eligibility check (nested if) ─────────────────────────────────
-// TODO: nested if — eligibility → grade classification → supplementary ternary
-
-
-// ── STEP 4: Display formatted HTML report card ────────────────────────────
-// TODO: output a clear, formatted report card showing:
-//       student name, each CAT score, exam score, total,
-//       cats attended, eligibility status, grade, remark, supplementary status
-
-
-// ── Required Test Data Sets — screenshot each ─────────────────────────────
-// Set A: cat1=8, cat2=7, cat3=9, cat4=6,  exam=52  → expect grade B
-// Set B: cat1=9, cat2=8, cat3=0, cat4=9,  exam=55  → expect grade A (check cats_attended)
-// Set C: cat1=0, cat2=0, cat3=7, cat4=0,  exam=48  → expect DISQUALIFIED
-// Set D: cat1=5, cat2=4, cat3=6, cat4=3,  exam=22  → expect grade D + supp eligible
-// Set E: cat1=0, cat2=0, cat3=0, cat4=0,  exam=15  → expect DISQUALIFIED
+} else {
+    // --- Disqualified Branch ---
+    echo "<strong>Status:</strong> <span style='color:red;'>DISQUALIFIED — Exam conditions not met</span><br>";
+}
+?>

starter/lab3_task3.php

@@ -3,59 +3,79 @@
  * ICS 2371 — Lab 3: Control Structures I
  * Task 3: switch-case and match Expression [6 marks]
  *
- * @author     [Your Full Name]
- * @student    [Your Reg Number, e.g. SCT212-XXXX/2024]
+ * @author     [wayne naum ]
+ * @student    [ENE 212-0060/2023]
  * @lab        Lab 3 of 14
  * @unit       ICS 2371
  * @date       [Date completed]
  */
 
-// ══════════════════════════════════════════════════════════════
+// ==========================================
 // EXERCISE A — Day of Week Classifier
-// ══════════════════════════════════════════════════════════════
-// Given $day (integer 1–7, where 1=Monday):
-// Use switch-case to print the day name.
-// Group Saturday and Sunday under "Weekend".
-// All weekdays print their name and "— Lecture day".
-// Remember: break is NOT optional. Missing break = fall-through.
+// ==========================================
+echo "<h3>Exercise A — Day of Week Classifier</h3>";
 
-$day = 3; // change this to test all cases
+$day = 4; 
 
-// TODO: switch-case for day classifier
+switch ($day) {
+    case 1: echo "Monday — Lecture day<br>"; break;
+    case 2: echo "Tuesday — Lecture day<br>"; break;
+    case 3: echo "Wednesday — Lecture day<br>"; break;
+    case 4: echo "Thursday — Lecture day<br>"; break;
+    case 5: echo "Friday — Lecture day<br>"; break;
+    case 6:
+    case 7:
+        echo "Weekend<br>";
+        break;
+    default:
+        echo "Invalid day number. Please enter 1-7.<br>";
+        break;
+}
 
+echo "<hr>";
 
-// ══════════════════════════════════════════════════════════════
+// ==========================================
 // EXERCISE B — HTTP Status Code Explainer
-// ══════════════════════════════════════════════════════════════
-// Given $status_code, use switch-case to explain it:
-//   200 → "OK — request succeeded"
-//   301 → "Moved Permanently — resource relocated"
-//   400 → "Bad Request — client error"
-//   401 → "Unauthorized — authentication required"
-//   403 → "Forbidden — access denied"
-//   404 → "Not Found — resource missing"
-//   500 → "Internal Server Error — server fault"
-// default → "Unknown status code"
-
-$status_code = 404;
-
-// TODO: switch-case for HTTP status
-
-
-// ══════════════════════════════════════════════════════════════
-// EXERCISE C — PHP 8 match Expression
-// ══════════════════════════════════════════════════════════════
-// Rewrite Exercise B using PHP 8 match instead of switch-case.
-// Note: match uses STRICT comparison (===). No break needed.
-// Observe the difference in syntax and behaviour.
-
-// TODO: match expression for HTTP status — same logic as Exercise B
-
-
-// ══════════════════════════════════════════════════════════════
-// EXERCISE D — Rewrite comparison
-// ══════════════════════════════════════════════════════════════
-// In your PDF report, answer:
-// 1. What is the key difference between switch (==) and match (===)?
-// 2. Give one example where this difference changes the output.
-// 3. When would you prefer switch over match, and why?
+// ==========================================
+echo "<h3>Exercise B</h3>";
+
+$status_code = 404; 
+
+switch ($status_code) {
+    case 200: echo "200: OK — The request succeeded.<br>"; break;
+    case 301: echo "301: Moved Permanently — The URL has been changed.<br>"; break;
+    case 400: echo "400: Bad Request — The server could not understand the request.<br>"; break;
+    case 401: echo "401: Unauthorized — Authentication is required.<br>"; break;
+    case 403: echo "403: Forbidden — You do not have permission to access this.<br>"; break;
+    case 404: echo "404: Not Found — The requested resource could not be found.<br>"; break;
+    case 500: echo "500: Internal Server Error — The server encountered a problem.<br>"; break;
+    default: echo "$status_code: Unknown Status Code.<br>"; break;
+}
+
+echo "<hr>";
+
+// ==========================================
+// EXERCISE C — PHP 8 match Rewrite
+// ==========================================
+echo "<h3>Exercise C</h3>";
+
+$status_code_match = 404; 
+
+// The match expression assigns the result directly to the variable
+$explanation = match ($status_code_match) {
+    200 => "200: OK — The request succeeded.<br>",
+    301 => "301: Moved Permanently — The URL has been changed.<br>",
+    400 => "400: Bad Request — The server could not understand the request.<br>",
+    401 => "401: Unauthorized — Authentication is required.<br>",
+    403 => "403: Forbidden — You do not have permission to access this.<br>",
+    404 => "404: Not Found — The requested resource could not be found.<br>",
+    500 => "500: Internal Server Error — The server encountered a problem.<br>",
+    default => "$status_code_match: Unknown Status Code.<br>",
+};
+
+echo $explanation;
+
+echo "<hr>";
+
+// The single closing tag for the whole file!
+?>