PizzaBuilder

Public class MyPizza{
  private int size;
  private boolean cheese;
  private boolean pepperoni;
  private boolean bacon;
  private boolean veggies;
  private boolean blackPepper;
  
  public MyPizza(int size,boolean cheese, boolean pepperoni, boolean bacon, boolean veggies, boolean blackPepper){
    this.size = size;
    this.cheese = cheese;
    this.pepperoni = pepperoni;
    this.bacon = bacon;
    this.veggies = veggies;
    this.blackPepper = blackPepper;
  }
  
  //No Setter to Impose Immutibility Of the Object
  
  public int getSize(){
    return size;
  }
  public boolean isPepperoni(){
    return pepperoni;
  }
  public boolean isBacon(){
    return bacon;
  }
  public boolean isVeggies(){
    return veggies;
  }
  
  static class Builder{
    private int size;
    private boolean cheese;
    private boolean pepperoni;
    private boolean bacon;
    private boolean veggies;
    private boolean blackPepper;
    
    public Builder setSize(int size){
      this.size = size;
      return this;
    }
    public Builder setPepperoni(boolean pepperoni){
      this.pepperoni = pepperoni;
      return this;
    }
    public Builder setBacon(boolean bacon){
      this.bacon = bacon;
      return this;
    }
    public Builder setVeggies(boolean veggies){
      this.veggies = veggies;
      return this;
    }
    public Builder setBlackPepper(boolean blackPepper){
      this.blackPepper = blackPepper;
      return this;
    }
    
    public MyPizza build(){
      return new MyPizza(size,cheese,pepperoni,bacon,veggies,blackPepper);
      //See No need to remember the order of arguments in constructor, while coding you only needs to remember
    }
    
  }
}