5 design patterns every Android developer should know - how to use Builder pattern

MainActiviy.java

public class MainActivity extends AppCompatActivity {

  @Override protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    //how to create your object using builder pattern
    Ship ship = new Ship.Builder().setName("Avenger")
        .howManyCrew(12)
        .howManyGuns(10)
        .radarType("Passive radar")
        .setOperationArea("Middle East")
        .build();
  }
}