All classes in Kotlin inherit from the class Any. Is this true?

Yes, that's correct. In Kotlin, as in Java, all classes implicitly inherit from a base class. In Kotlin, this class is Any.

// Example of class declaration
class MyClass {
    // MyClass does not explicitly specify a superclass
    // but it implicitly inherits from Any
}

The Any class provides a basic set of methods common to all objects:

• equals(other: Any?): Boolean - for comparing objects for equality.
• hashCode(): Int - returns the hash code of the object.
• toString(): String - returns a string representation of the object.

These methods can be overridden in any class to provide specific implementations.