feat: adds lesson_11 content and lesson_12 pre-work

.github/workflows/check_lesson_11_java_pr.yaml

@@ -0,0 +1,27 @@
+name: Check Lesson 11 Pull Request
+
+on:
+  pull_request:
+    branches: [ "main" ]
+    paths:
+      - "lesson_11/arrays_java/**"
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up JDK
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+
+    - name: Build Lesson 11 with Java
+      working-directory: ./lesson_11/arrays_java
+      run: ./gradlew check

.github/workflows/check_lesson_11_ts_pr.yaml

@@ -0,0 +1,28 @@
+name: Check Lesson 11 Pull Request
+
+on:
+  pull_request:
+    branches: [ "main" ]
+    paths:
+      - "lesson_11/arrays_ts/**"
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Use Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20.x'
+
+    - name: Build Lesson 11 with Node.js
+      working-directory: ./lesson_11/arrays_ts
+      run: |
+        npm ci
+        npm run check

.github/workflows/check_push.yml

@@ -11,6 +11,10 @@ on:
       - "lesson_06/quiz/**"
       - "lesson_06/expression/**"
       - "lesson_07/conditionals/**"
+      - "lesson_09/types/**"
+      - "lesson_10/libraries/**"
+      - "lesson_11/arrays_java/**"
+      - "lesson_11/arrays_ts/**"
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -103,3 +107,13 @@ jobs:
       run: |
         npm ci
         npm run compile
+
+    - name: Build Lesson 11 with Java
+      working-directory: ./lesson_11/arrays_java
+      run: ./gradlew assemble
+
+    - name: Build Lesson 11 with Node.js
+      working-directory: ./lesson_11/arrays_ts
+      run: |
+        npm ci
+        npm run compile

lesson_11/README.md

@@ -9,4 +9,9 @@ Please review the following resources before lecture:
 
 ## Homework
 
-- TODO(anthonydmays): Come up with something
+- [ ] Complete methods in [Lesson11.java](./arrays_java/arrays_app/src/main/java/com/codedifferently/lesson11/Lesson11.java) and submit PR.
+- [ ] Do pre-work for [lesson 12](/lesson_12/).
+
+### Extra credit
+
+- [ ] Complete TypeScript version of methods in [Lesson11.ts](./arrays_ts/src/lesson11.ts) and submit PR.

lesson_11/arrays_java/.gitattributes

@@ -0,0 +1,9 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+

lesson_11/arrays_java/.gitignore

@@ -0,0 +1,5 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build

lesson_11/arrays_java/arrays_app/build.gradle.kts

@@ -0,0 +1,64 @@
+plugins {
+    // Apply the application plugin to add support for building a CLI application in Java.
+    application
+    eclipse
+    id("com.diffplug.spotless") version "6.25.0"
+	  id("org.springframework.boot") version "3.4.0"
+    id("com.adarshr.test-logger") version "4.0.0"
+}
+
+apply(plugin = "io.spring.dependency-management")
+
+repositories {
+    // Use Maven Central for resolving dependencies.
+    mavenCentral()
+}
+
+dependencies {
+    // Use JUnit Jupiter for testing.
+    testImplementation("com.codedifferently.instructional:instructional-lib")
+    testImplementation("org.junit.jupiter:junit-jupiter:5.11.3")
+    testImplementation("org.springframework.boot:spring-boot-starter-test")
+    testImplementation("org.assertj:assertj-core:3.26.3")
+    testImplementation("at.favre.lib:bcrypt:0.10.2")
+
+    // This dependency is used by the application.
+    implementation("com.codedifferently.instructional:instructional-lib")
+    implementation("com.google.guava:guava:33.3.1-jre")
+    implementation("com.google.code.gson:gson:2.11.0")
+    implementation("org.projectlombok:lombok:1.18.30")
+    implementation("org.springframework.boot:spring-boot-starter")
+}
+
+application {
+    // Define the main class for the application.
+    mainClass.set("com.codedifferently.lesson11.Lesson11")
+}
+
+tasks.named<Test>("test") {
+    // Use JUnit Platform for unit tests.
+    useJUnitPlatform()
+}
+
+
+configure<com.diffplug.gradle.spotless.SpotlessExtension> {
+
+  format("misc", {
+    // define the files to apply `misc` to
+    target("*.gradle", ".gitattributes", ".gitignore")
+
+    // define the steps to apply to those files
+    trimTrailingWhitespace()
+    indentWithTabs() // or spaces. Takes an integer argument if you don't like 4
+    endWithNewline()
+  })
+
+  java {
+    // don't need to set target, it is inferred from java
+
+    // apply a specific flavor of google-java-format
+    googleJavaFormat()
+    // fix formatting of type annotations
+    formatAnnotations()
+  }
+}

lesson_11/arrays_java/arrays_app/src/main/java/com/codedifferently/lesson11/Lesson11.java

@@ -0,0 +1,22 @@
+package com.codedifferently.lesson11;
+
+import java.util.List;
+
+public class Lesson11 {
+
+  /**
+   * Provide the solution to LeetCode 1929 here:
+   * https://leetcode.com/problems/concatenation-of-array
+   */
+  public int[] getConcatenation(int[] nums) {
+    return null;
+  }
+
+  /**
+   * Provide the solution to LeetCode 2942 here:
+   * https://leetcode.com/problems/find-words-containing-character/
+   */
+  public List<Integer> findWordsContaining(String[] words, char x) {
+    return null;
+  }
+}

lesson_11/arrays_java/arrays_app/src/test/java/com/codedifferently/lesson11/Lesson11Test.java

@@ -0,0 +1,79 @@
+package com.codedifferently.lesson11;
+
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.Arrays;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+
+class Lesson11Test {
+
+  @Test
+  public void testGetConcatenation() {
+    Lesson11 solution = new Lesson11();
+
+    // Test case 1
+    int[] nums1 = {1, 2, 1};
+    int[] expected1 = {1, 2, 1, 1, 2, 1};
+    int[] result1 = solution.getConcatenation(nums1);
+    assertArrayEquals(expected1, result1);
+
+    // Test case 2
+    int[] nums2 = {1, 3, 2, 1};
+    int[] expected2 = {1, 3, 2, 1, 1, 3, 2, 1};
+    int[] result2 = solution.getConcatenation(nums2);
+    assertArrayEquals(expected2, result2);
+
+    // Test case 3
+    int[] nums3 = {};
+    int[] expected3 = {};
+    int[] result3 = solution.getConcatenation(nums3);
+    assertArrayEquals(expected3, result3);
+
+    // Test case 4
+    int[] nums4 = {5};
+    int[] expected4 = {5, 5};
+    int[] result4 = solution.getConcatenation(nums4);
+    assertArrayEquals(expected4, result4);
+
+    // Test case 5
+    int[] nums5 = {0, 0, 0};
+    int[] expected5 = {0, 0, 0, 0, 0, 0};
+    int[] result5 = solution.getConcatenation(nums5);
+    assertArrayEquals(expected5, result5);
+  }
+
+  @Test
+  public void testWordsContainingChar() {
+    Lesson11 solution = new Lesson11();
+
+    // Test case 1
+    char ch1 = 'a';
+    String[] words1 = {"apple", "banana", "cherry", "date"};
+    List<Integer> expected1 = Arrays.asList(0, 1, 3);
+    List<Integer> result1 = solution.findWordsContaining(words1, ch1);
+    assertEquals(expected1, result1);
+
+    // Test case 2
+    char ch2 = 'z';
+    String[] words2 = {"apple", "banana", "cherry", "date"};
+    List<Integer> expected2 = Arrays.asList();
+    List<Integer> result2 = solution.findWordsContaining(words2, ch2);
+    assertEquals(expected2, result2);
+
+    // Test case 3
+    char ch3 = 'e';
+    String[] words3 = {"apple", "banana", "cherry", "date"};
+    List<Integer> expected3 = Arrays.asList(0, 2, 3);
+    List<Integer> result3 = solution.findWordsContaining(words3, ch3);
+    assertEquals(expected3, result3);
+
+    // Test case 4
+    char ch4 = 'a';
+    String[] words4 = {"", " ", "banana"};
+    List<Integer> expected4 = Arrays.asList(2);
+    List<Integer> result4 = solution.findWordsContaining(words4, ch4);
+    assertEquals(expected4, result4);
+  }
+}

lesson_11/arrays_java/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists