@@ -0,0 +1,23 @@
+package com.zetcode;
+
+import java.util.StringJoiner;
+
+public class Cat {
+
+    private String name;
+    private Integer age;
+
+    public Cat(String name, Integer age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    @Override
+    public String toString() {
+        return new StringJoiner(", ", Cat.class.getSimpleName() + "[", "]")
+                .add("name='" + name + "'")
+                .add("age=" + age)
+                .toString();
+    }
+}
+