用示例在 Java 中类 isInterface()方法
原文:https://www . geesforgeks . org/class-is interface-method-in-Java-with-examples/
java.lang.Class 类 的 isInterface() 方法用于检查该类是否为接口。如果此类是接口，则方法返回 true。否则返回 false。
语法:
public boolean isInterface()
参数:此方法不接受任何参数。
返回值:如果这个类是接口，这个方法返回真。否则返回假。
下面的程序演示了 isInterface()方法。
例 1:
// 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:
// 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());
}
}
输出:
Is T an interface: true
参考:https://docs . Oracle . com/javase/9/docs/API/Java/lang/class . html # Isinterface–
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