rage · S4ndyk · Jul 15, 2020 · Jul 13, 2020 · Jul 14, 2020 · Jul 15, 2020
diff --git a/data/part-4/1-introduction-to-object-oriented-programming.md b/data/part-4/1-introduction-to-object-oriented-programming.md
@@ -702,7 +702,7 @@ Create a class `Product` that represents a store product. The product should hav
 
 The class should have:
 
-- the constructor `public Item (String initialName, double initialPrice, int initialQuantity)`
+- the constructor `public Product (String initialName, double initialPrice, int initialQuantity)`
 - a method `public void printProduct()` that prints product information in the following format:
 
 <sample-output>

diff --git a/data/part-4/3-files-and-reading-data.md b/data/part-4/3-files-and-reading-data.md
@@ -983,11 +983,11 @@ amy,1
 
 <!-- Tehtäväpohjassa on valmiina luokka `Henkilo` sekä luokassa `HenkilotTiedostosta` oleva runko metodille `public static ArrayList<Henkilo> lueHenkilot(String tiedosto)`. Toteuta metodi `lueHenkilot` siten, että metodissa luetaan parametrina annetusta tiedostosta henkilöt, jotka lopulta palautetaan metodin palauttamassa listassa. -->
 
-The exercise template already has a `Person` class, and the class `StoringRecords` has a body for the method `public static ArrayList<Person> readPeople(String file)`. Implement the `readPeople` method such that it reads the persons from the file passed as a parameter, and finally returns them in the list returned by the method.
+The exercise template already has a `Person` class, and the class `StoringRecords` has a body for the method `public static ArrayList<Person> readRecordsFromFile(String file)`. Implement the `readRecordsFromFile` method such that it reads the persons from the file passed as a parameter, and finally returns them in the list returned by the method.
 
 <!-- Tehtäväpohjassa on valmiina `main`-metodi, jossa voit kokeilla ohjelmasi toimintaa. Muokkaa tehtävässä vain metodia `lueHenkilot`. -->
 
-The exercise template has a `main` method that you can use to test how your program works. In this exercise, only modify the method `readPeople`.
+The exercise template has a `main` method that you can use to test how your program works. In this exercise, only modify the method `readRecordsFromFile`.
 
 </programming-exercise>
 

diff --git a/data/part-5/4-objects-and-references.md b/data/part-5/4-objects-and-references.md
@@ -3780,7 +3780,7 @@ Implement the method `public void advance(int howManyDays)` that moves the date
 
 <!-- Lisätään `Paivays`-olioon mahdollisuus edistää aikaa. Tee oliolle metodi `Paivays paivienPaasta(int paivia)`, joka luo **uuden** `Paivays`-olion, jonka päiväys on annetun päivien lukumäärän verran suurempi kuin oliolla, jolle sitä kutsuttiin. Voit edelleen olettaa, että jokaisessa kuukaudessa on 30 päivää. Huomaa, että vanhan päiväysolion on pysyttävä muuttumattomana! -->
 
-Let's add the possibility to advance time to the `SimpleDate` class. Create the method `SimpleDate afterNumberOfDays(int days)` for the class. It creates a **new** `SimpleDate` object whose date is the specified number of days greater than the object that the method was called on. You may still assume that each month has 30 days. Notice that the old date object must remain unchanged!
+Let's add the possibility to advance time to the `SimpleDate` class. Create the method `public SimpleDate afterNumberOfDays(int days)` for the class. It creates a **new** `SimpleDate` object whose date is the specified number of days greater than the object that the method was called on. You may still assume that each month has 30 days. Notice that the old date object must remain unchanged!
 
 <!-- Koska metodissa on luotava **uusi olio**, tulee rungon olla suunnilleen seuraavanlainen: -->