JAva反射アクセスメンバー変数

public class Phone {   
    int size = 15;   
    public float price = 2111.2f;   
    protected boolean good = true;   
   // private String brand = "iphone";   
}

import java.lang.reflect.Field;   
public class Test {
    public static void main(String[] args) throws Exception{   
        Phone p = new Phone();   
        
        Class c = p.getClass();   
       
        Field[] declaredFields = c.getDeclaredFields();
        //    
        for(int i = 0; i < declaredFields.length; i++) {   
            //    
            Field field = declaredFields[i];   

            //    
            System.out.print(" ：" + field.getName()+"\t");   
            
            //    
            Class fieldType = field.getType();   
            System.out.println(" ：" + fieldType);
            
            // field 
            System.out.println(" \t"+field.get(p));  
        }   
    }   
}

 ：size	 ：int
 	15
 ：price	 ：float
 	2111.2
 ：good	 ：boolean
 	true