From 3e40bb34387771a21d74eee92796d4f4f5e974b1 Mon Sep 17 00:00:00 2001
From: Roderick Leito <roderick.leito@gmail.com>
Date: Wed, 6 Aug 2025 12:51:24 +0200
Subject: [PATCH] Finished all exercises

---
 .../java/com/booleanuk/core/Exercise.java     | 34 +++++++++++++++----
 1 file changed, 27 insertions(+), 7 deletions(-)

diff --git a/src/main/java/com/booleanuk/core/Exercise.java b/src/main/java/com/booleanuk/core/Exercise.java
index d31a45c..eab5157 100644
--- a/src/main/java/com/booleanuk/core/Exercise.java
+++ b/src/main/java/com/booleanuk/core/Exercise.java
@@ -43,8 +43,11 @@ public ArrayList<Integer> getFavouriteNumbers() {
         TODO: 1. Create a method named getSecondNumber that returns a whole number. It must return the
            second number contained in the list that is returned from getFavouriteNumbers
      */
-
-
+    public int getSecondNumber(){
+        ArrayList<Integer> list = getFavouriteNumbers();
+        int num = list.get(1);
+        return num;
+    }
 
     /*
         TODO: 2. Create a method named multiply that accepts two parameters in this order:
@@ -56,14 +59,23 @@ public ArrayList<Integer> getFavouriteNumbers() {
          https://www.programiz.com/java-programming/library/arraylist/replaceall
      */
 
+    @Override
+    public ArrayList<Integer> multiply(ArrayList<Integer> list, int mltplr) {
+        for(int i = 0; i<list.size(); i++){
+            int result = list.get(i) * mltplr;
+            list.set(i, result);
+        }
 
-
+        return list;
+    }
     /*
         TODO: 3. Create a method named isEmpty that accepts one parameter:
          - A list of strings
          The method must return a boolean that indicates whether the provided list is empty or not
      */
-
+    public boolean isEmpty(ArrayList<String> list){
+        return list.isEmpty();
+    }
 
 
     /*
@@ -72,7 +84,10 @@ public ArrayList<Integer> getFavouriteNumbers() {
          - A string
          The method must add the second parameter into the list provided and then return the list
      */
-
+    public ArrayList<String> addIngredient(ArrayList<String> list, String str){
+        list.add(str);
+        return list;
+    }
 
 
     /*
@@ -81,7 +96,10 @@ public ArrayList<Integer> getFavouriteNumbers() {
          - A string
          The method must remove the second parameter from the list and then return the list
      */
-
+    public ArrayList<String> removeIngredient(ArrayList<String> list, String str){
+        list.remove(str);
+        return list;
+    }
 
 
     /*
@@ -90,7 +108,9 @@ public ArrayList<Integer> getFavouriteNumbers() {
          - A string
          The method must return a boolean that indicates whether the second parameter exists in the provided list
      */
-
+    public boolean containsIngredient(ArrayList<String> list, String str){
+        return list.contains(str);
+    }
 
 
 }