Keyboard Text Input - Libgdx Typing CST Test

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Keyboard Text Input — Libgdx Code

Shows simple typed text on screen.

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;

public class TypeDemo extends ApplicationAdapter {
	private SpriteBatch batch;
	private BitmapFont font;
	private String text = "";

	@Override
	public void create() {
		batch = new SpriteBatch();
		font = new BitmapFont();
	}

	@Override
	public void render() {
		for (int i = 29; i < 127; i++) {
		if (Gdx.input.isKeyJustPressed(i)) text += (char)i;
		}

		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
		batch.begin();
		font.draw(batch, text, 50, 150);
		batch.end();
	}
}

Libgdx Language Guide

LibGDX is a powerful, open-source Java game framework for building high-performance 2D and 3D games that run on desktop, Android, iOS, and web through a single shared codebase.

Primary Use Cases

▸Cross-platform 2D and 3D games
▸Android-first game development
▸Custom in-house engines
▸Scientific/physics simulations
▸Desktop games with OpenGL rendering

Notable Features

▸Single Java/Kotlin codebase -> multiple platforms
▸Scene2D UI and Scene2D stage/actors
▸Built-in physics via Box2D
▸OpenGL-based rendering pipeline
▸Powerful math + linear algebra library

Origin & Creator

LibGDX was created by Mario Zechner and maintained by a global open-source community focused on flexible, high-performance Java game development.

Industrial Note

LibGDX thrives in Android game development, indie 2D/3D engines, simulation-heavy games, and education-especially for teams needing full control without being locked into heavy engines.

More Libgdx Typing Exercises

LibGDX Simple Counter Game LibGDX Sprite Movement LibGDX Clear Screen Color LibGDX Animation Example LibGDX Timer Event LibGDX Mouse Tracker LibGDX Sound Playback LibGDX Touch Example LibGDX Random Walker LibGDX FPS Display

Practice Other Languages

C React Python C++Rust TypeScript Kotlin PHP Java C#Ruby Mql Cql N1ql Cypher

Keyboard Text Input — Libgdx Code

Shows simple typed text on screen.

import com.badlogic.gdx.ApplicationAdapter; import com.badlogic.gdx.Gdx; import com.badlogic.gdx.Input; import com.badlogic.gdx.graphics.GL20; import com.badlogic.gdx.graphics.g2d.BitmapFont; import com.badlogic.gdx.graphics.g2d.SpriteBatch; public class TypeDemo extends ApplicationAdapter { private SpriteBatch batch; private BitmapFont font; private String text = ""; @Override public void create() { batch = new SpriteBatch(); font = new BitmapFont(); } @Override public void render() { for (int i = 29; i < 127; i++) { if (Gdx.input.isKeyJustPressed(i)) text += (char)i; } Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); batch.begin(); font.draw(batch, text, 50, 150); batch.end(); } }

Libgdx Language Guide

LibGDX is a powerful, open-source Java game framework for building high-performance 2D and 3D games that run on desktop, Android, iOS, and web through a single shared codebase.

Primary Use Cases

▸Cross-platform 2D and 3D games
▸Android-first game development
▸Custom in-house engines
▸Scientific/physics simulations
▸Desktop games with OpenGL rendering

Notable Features

▸Single Java/Kotlin codebase -> multiple platforms
▸Scene2D UI and Scene2D stage/actors
▸Built-in physics via Box2D
▸OpenGL-based rendering pipeline
▸Powerful math + linear algebra library

Origin & Creator

LibGDX was created by Mario Zechner and maintained by a global open-source community focused on flexible, high-performance Java game development.

Industrial Note

LibGDX thrives in Android game development, indie 2D/3D engines, simulation-heavy games, and education-especially for teams needing full control without being locked into heavy engines.