ExampleClient.java

public class ExampleClient {
  public static enum Environment {
  DEV, STAGING, PROD
  }

  private ExampleClient(Context context, String key, int logLevel, Environment environment) {
  }


  private static Builder {

    private Context context;
    private String key; 
    private int logLevel;
    private Environment environment

    public Builder(Context context, String key) {
      this.context = context;
      this.key = key;
    }

    public Builder setLogLevel(int logLevel) {
      this.logLevel = logLevel;
      return this;
    }

    public Builder setEnvironment(Environment environment) {
      this.environment = environment;
      return this;
    }

    public ExampleClient build() {
      return new ExampleClient(this.context, this.key, this.logLevel, this.environment)
    }

  }

}