Java Class getSuperclass()用法及代碼示例

java.lang.Class類的getSuperclass()方法用於獲取此實體的超類。該實體可以是類，數組，接口等。該方法返回此實體的超類。

用法:

public Class<T> getSuperclass()

參數：此方法不接受任何參數。

返回值：此方法返回此實體的超類。

下麵的程序演示了getSuperclass()方法。

示例1:

// 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()); 
    } 
}

輸出：

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

示例2:

// 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()); 
    } 
}

輸出：

Superclass of arrClass: class java.lang.Object

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

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