java.lang.Class.getSuperclass() 返回类表示此Class所表示的实体(类，接口，基本类型或void)的超类。

声明

以下是java.lang.Class.getSuperclass()方法的声明

public Class<? super T> getSuperclass()

参数

• NA

返回值

此方法返回当前对象所表示的类的超类。

异常

• NA

例子

下面的例子显示java.lang.Class.getSuperclass()方法的使用。

package com.yiibai;

import java.lang.*;

class superClass {
   // super class
}

class subClass extends superClass {
   // sub class
}

public class ClassDemo {

   public static void main(String args[]) {

     superClass val1 = new superClass();
     subClass val2 = new subClass();
     Class cls;

     cls = val1.getClass(); 
     System.out.println("val1 is object of type = " + cls.getName());

     /* returns the superclass of the class(superClass) represented 
     by this object */
     cls = cls.getSuperclass();
     System.out.println("super class of val1 = " + cls.getName());

     cls = val2.getClass(); 
     System.out.println("val2 is object of type = " + cls.getName());
     
     /* returns the superclass of the class(subClass) represented
     by this object */
     cls = cls.getSuperclass();
     System.out.println("super class of val2 = " + cls.getName());
   }
}

让我们来编译和运行上面的程序，这将产生以下结果：

val1 is object of type = superClass
super class of val1 = java.lang.Object
val2 is object of type = subClass
super class of val2 = superClass