Map / Using Objects

🧰 Using Objects

Strings are objects with methods you call with a dot. Math gives ready-made calculations, and Integer turns text into numbers.

• new
• length()
• substring()
• indexOf()
• charAt()
• equals()
• Math.pow()
• Math.sqrt()
• Integer.parseInt()
• null

🛠 You will build: A name and text formatter

0 / 10 done

1. 🔮 Predict 1. String methods
2. 👣 Trace 2. Pieces of a name
3. 🔮 Predict 3. Math methods
4. 🔮 Predict 4. == or equals?
5. 🧩 Order 5. Text to numbers
6. ✏️ Fill in 6. Shout and whisper
7. 🐞 Debug 7. Method or field?
8. 🐞 Debug 8. Off the end of the String
9. ⌨️ Write 9. Initials
10. ⌨️ Write 10. Distance between points

Unit check

Earlier activities again, with new inputs and edge cases. They also come back on the map as review the next day.

1. 🔮 Predict Check 1. Check: positions again
2. ⌨️ Write Check 2. Check: initials from one name