Text and TextMeshPro in Unity - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this TextMeshPro code?

Consider this Unity C# script snippet using TextMeshPro. What text will appear on the screen?

Unity

using TMPro;
using UnityEngine;

public class TMPExample : MonoBehaviour {
    public TMP_Text tmpText;

    void Start() {
        tmpText.text = "Score: " + (10 + 5);
    }
}

A Score: 15

B Score: 10 5

C Score: 105

D Score: 10+5

💡 Hint

Remember how string concatenation works with numbers in C#.

The expression "Score: " + 10 + 5 concatenates from left to right. "Score: " + 10 becomes "Score: 10" (string), then + 5 becomes "Score: 105" (string).

🧠 Conceptual

intermediate

Which component is best for dynamic styled text in Unity?

You want to display text that changes often and supports rich styling like bold, italic, and color. Which Unity component should you use?

A UnityEngine.UI.Text

B TextMeshProUGUI

C RawImage

D CanvasRenderer

💡 Hint

Think about which component supports advanced text features and performance.

TextMeshProUGUI supports rich text styling, dynamic updates, and better quality rendering than the basic UI Text component.

🔧 Debug

advanced

Why does this TextMeshPro text not update?

Look at this code snippet. The text does not change on screen after calling UpdateScore. What is the problem?

Unity

using TMPro;
using UnityEngine;

public class ScoreDisplay : MonoBehaviour {
    public TMP_Text scoreText;
    private int score = 0;

    void Start() {
        UpdateScore();
    }

    public void AddPoints(int points) {
        score += points;
        UpdateScore();
    }

    void UpdateScore() {
        TMP_Text scoreText = GetComponent<TMP_Text>();
        scoreText.text = "Score: " + score;
    }
}

A The AddPoints method is never called, so UpdateScore is never triggered.

B The score variable is never updated, so the text stays at zero.

C The TMP_Text component is missing from the GameObject, causing a null reference.

D The UpdateScore method creates a new local scoreText hiding the public one, so the displayed text never changes.

💡 Hint

Check variable shadowing inside UpdateScore.

Inside UpdateScore, the line 'TMP_Text scoreText = GetComponent();' declares a new local variable that hides the public field. The public scoreText is never updated, so the visible text does not change.

📝 Syntax

advanced

Which code snippet correctly changes TextMeshPro text color?

Choose the code that correctly sets the color of a TextMeshProUGUI text component to red.

A tmpText.textColor = Color.red;

B tmpText.SetColor(Color.red);

C tmpText.color = Color.red;

D tmpText.SetTextColor(Color.red);

💡 Hint

Check the official property name for color in TextMeshProUGUI.

The correct property to change text color is 'color'. Methods like SetColor or properties like textColor do not exist in TextMeshProUGUI.

🚀 Application

expert

How many characters will be displayed after this TextMeshPro update?

Given this code, how many visible characters will the TextMeshProUGUI component display?

Unity

using TMPro;
using UnityEngine;

public class TextCount : MonoBehaviour {
    public TMP_Text tmpText;

    void Start() {
        tmpText.text = "Hello <color=red>World</color>!";
    }
}

A 12

B 11

C 10

D 13

💡 Hint

Count only visible characters, ignoring tags.

The string "Hello World!" has visible characters: H e l l o [space] (6) + W o r l d (5) + ! (1) = 12 characters.