autoboxingdemo1.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter8;

public class AutoboxingDemo1
{
    public static void main(String[] args)
    {
        Integer data1 = 10;
        Integer data2 = 20;        
        System.out.println(data1.doubleValue() / 3); // 转为double值再除以3
        System.out.println(data1.compareTo(data2)); // 进行两个值的比较
    }
}