Java中的类 getSuperclass() 方法和示例

Java.lang.Class 类的getSuperclass()方法用于获取该实体的超类。这个实体可以是一个类、一个数组、一个接口等。方法返回这个实体的超类。
句法：

public Class getSuperclass()

参数：此方法不接受任何参数。
返回值：该方法返回该实体的超类。
下面的程序演示了 getSuperclass() 方法。
示例 1：

Java

// Java program to demonstrate getSuperclass() method
 
public class Test {
    public static void main(String[] args)
        throws ClassNotFoundException
    {
 
        // returns the Class object for this class
        Class myClass = Class.forName("Test");
 
        System.out.println("Class represented by myClass: "
                           + myClass.toString());
 
        // Get the super class of myClass
        // using getSuperclass() method
        System.out.println("Superclass of myClass: "
                           + myClass.getSuperclass());
    }
}

输出：

Class represented by myClass: class Test
Superclass of myClass: class java.lang.Object

示例 2：

Java

// Java program to demonstrate getSuperclass() method
 
public class Test {
 
    class Arr {
    }
 
    public static void main(String[] args)
        throws ClassNotFoundException
    {
        // returns the Class object for Arr
        Class arrClass = Arr.class;
 
        // Get the super class of arrClass
        // using getSuperclass() method
        System.out.println("Superclass of arrClass: "
                           + arrClass.getSuperclass());
    }
}

输出：

Superclass of arrClass: class java.lang.Object

参考： https://docs.oracle.com/javase/9/docs/api/ Java/lang/Class.html#getSuperclass–