package com.imooc.chen;

public class Book {

  private int id;

  private String name;

  public float price;

public Book() {

super();

// TODO Auto-generated constructor stub

}

public Book(int id, String name, float price) {

super();

this.id = id;

this.name = name;

this.price = price;

}

@Override

public String toString() {

return "Book [id=" + id + ", name=" + name + ", price=" + price + "]";

}

}

package com.imooc.chen;

import java.lang.reflect.Field;

import org.junit.Test;

public class ToTest {

@Test

      public void demo1() throws Exception{

     Class class1 = Class.forName("com.imooc.reflect.test.Book");

          Field field=class1.getField("price");

          Book b=(Book)class1.newInstance();

          field.set(b,"16.00f");

          Object o=field.get(b);

          System.out.println(o);

}

}