Implement examples for ASCII Art in Java (#3753)

core-java/src/main/java/com/baeldung/asciiart/AsciiArt.java

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+package com.baeldung.asciiart;
+
+import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.image.BufferedImage;
+
+public class AsciiArt {
+
+    public AsciiArt() {
+    }
+
+    public void drawString(String text, String artChar, Settings settings) {
+        BufferedImage image = getImageIntegerMode(settings.width, settings.height);
+
+        Graphics2D graphics2D = getGraphics2D(image.getGraphics(), settings);
+        graphics2D.drawString(text, 6, ((int) (settings.height * 0.67)));
+
+        for (int y = 0; y < settings.height; y++) {
+            StringBuilder stringBuilder = new StringBuilder();
+
+            for (int x = 0; x < settings.width; x++) {
+                stringBuilder.append(image.getRGB(x, y) == -16777216 ? " " : artChar);
+            }
+
+            if (stringBuilder.toString()
+                .trim()
+                .isEmpty()) {
+                continue;
+            }
+
+            System.out.println(stringBuilder);
+        }
+
+    }
+
+    private BufferedImage getImageIntegerMode(int width, int height) {
+        return new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+    }
+
+    private Graphics2D getGraphics2D(Graphics graphics, Settings settings) {
+        graphics.setFont(settings.font);
+
+        Graphics2D graphics2D = (Graphics2D) graphics;
+        graphics2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+
+        return graphics2D;
+    }
+
+    public class Settings {
+        public Font font;
+        public int width;
+        public int height;
+
+        public Settings(Font font, int width, int height) {
+            this.font = font;
+            this.width = width;
+            this.height = height;
+        }
+    }
+}

core-java/src/test/java/com/baeldung/asciiart/AsciiArtTest.java

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+package com.baeldung.asciiart;
+
+import java.awt.Font;
+
+import org.junit.Test;
+
+import com.baeldung.asciiart.AsciiArt.Settings;
+
+public class AsciiArtTest {
+
+    @Test
+    public void givenTextWithAsciiCharacterAndSettings_shouldPrintAsciiArt() {
+        AsciiArt asciiArt = new AsciiArt();
+        String text = "BAELDUNG";
+        Settings settings = asciiArt.new Settings(new Font("SansSerif", Font.BOLD, 24), text.length() * 30, 30); // 30 pixel width per character
+        
+        asciiArt.drawString(text, "*", settings);
+    }
+    
+}