rttidemo.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;

class XClass
{
    int a;
    float b;
}

class YClass extends XClass
{
    double c;
}

public class RTTIDemo
{
    public static void main(String args[])
    {
        XClass x = new XClass();
        YClass y = new YClass();
        Class clObj = x.getClass(); // get Class reference
        System.out.println("object of type: " + clObj.getName());
        clObj = y.getClass(); // get Class reference
        System.out.println("object of type: " + clObj.getName());
        clObj = clObj.getSuperclass();
        System.out.println("y's superclass is " +clObj.getName());
    }
}