Java Class isInterface()方法及实例

java.lang.Class类的isInterface()方法用于检查该类是否是一个接口。如果这个类是一个接口，该方法返回true。否则返回false。

语法。

public boolean isInterface()

参数。该方法不接受任何参数。

返回值。如果这个类是一个接口，该方法返回true。否则返回false。

下面的程序演示了isInterface()方法。

例1:

tabby title=”Java”]

// Java program to demonstrate isInterface() 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 interface
        // using isInterface() method
        System.out.println("Is Test an interface: "
                           + myClass.isInterface());
    }
}

输出:

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

例2:

tabby title=”Java”]

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