/**
 * @author HUHG
 * 2009-07-29 11:37
 */
public class Nutrition {
    private final int servingSize;
    private final int servings;
    
    //option
    private final int calories;
    private final int fat;
    private final int sodium;
    //...  more
    
    public static class Builder {
        private int servingSize;
        private int servings;
        
        //option
        private int calories= 0;
        private int fat= 0;
        private int sodium= 0;
        //... more
        
        public Builder(int servingSize, int servings){
            this.servingSize= servingSize;
            this.servings= servings;
        }
        
        public Builder calories(int value){
            calories= value;
            
            return this;
        }
        
        public Builder fat(int value){
            fat= value;
            
            return this;
        }
        
        public Builder sodium(int value){
            sodium= value;
            
            return this;
        }
        
        //... more
        
        public Nutrition build(){
            return new Nutrition(this);
        }
    }
    
    private Nutrition(Builder builder){
        servingSize= builder.servingSize;
        servings= builder.servings;
        
        calories= builder.calories;
        fat= builder.fat;
        sodium= builder.sodium;
        //... more
    }

    /**
     * @param args
     */
    public static void main(String[] args){
        Nutrition object= new Nutrition.Builder(100, 10).calories(20).fat(5).build();
        //... use it
    }

}