Key words: Not change under laying behavior

UML

Adapter Pattern

Adapter

Pseudo Code

interface ITarget {
  void request();
}

class Adapter implements ITarget {
  Adaptee adaptee;
  
  public Adapter(Adaptee a) {
    this.adaptee = a;
  }
  
  public void request() {
    this.adaptee.specificRequest();
  }
}

class Adaptee {
  public specificRequest() {
    // Do something
  }
}

// From client
ITarget target = new Adapter(new Adaptee());
target.request();

Reference