Java Class isMemberClass()方法及示例

Java Class isMemberClass()方法及示例

java.lang.Class类isMemberClass() 方法用于检查该类是否为成员类。如果该类是成员类,该方法返回true。否则返回false。
语法:

public boolean isMemberClass()

参数: 该方法不接受任何参数。

返回值: 如果这个类是成员类,该方法返回 true 。否则返回 false

下面的程序演示了isMemberClass()方法。

示例1:

// Java program to demonstrate isMemberClass() 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());
 
        // Check if this class is an memberClass
        // using isMemberClass() method
        System.out.println("Is Test an memberClass: "
                           + myClass.isMemberClass());
    }
}

输出

Class represented by myClass: class Test
Is Test an memberClass: false

例2:

// Java program to demonstrate isMemberClass() method
 
public class Test {
 
    class A {
    }
 
    public static void main(String[] args)
        throws ClassNotFoundException
    {
 
        // returns the Class object for A
        Class myClass = A.class;
 
        // Check if myClass is an memberClass
        // using isMemberClass() method
        System.out.println("Is A an memberClass: "
                           + myClass.isMemberClass());
    }
}

输出

Is A an memberClass: true

参考资料: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#isMemberClass-

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