Java 中的类 getGenericInterfaces()方法，示例
原文:https://www . geesforgeks . org/class-getgenericinterfaces-method-in-Java-with-examples/
java.lang.Class 类 的 getGenericInterfaces() 方法用于获取该实体直接实现的接口类型。该实体可以是类或接口。方法返回由该实体直接实现的接口类型的数组。
语法:
public Type[] getGenericInterfaces()
参数:此方法不接受任何参数。
返回值:该方法返回一个由该实体直接实现的接口类型为的数组。
下面的程序演示了 getGenericInterfaces()方法。
例 1:
// Java program to demonstrate
// getGenericInterfaces() method
import java.util.*;
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 type of interfaces of myClass
// using getGenericInterfaces() method
System.out.println(
"GenericInterfaces of myClass: "
+ Arrays.toString(
myClass.getGenericInterfaces()));
}
}
输出:
Class represented by myClass: class Test
GenericInterfaces of myClass: []
例 2:
// Java program to demonstrate
// getGenericInterfaces() method
import java.util.*;
interface Arr {
}
public class Test implements Arr {
public static void main(String[] args)
throws ClassNotFoundException
{
// returns the Class object
Class myClass = Class.forName("Test");
// Get the type of interfaces of myClass
// using getGenericInterfaces() method
System.out.println(
"GenericInterfaces of myClass: "
+ Arrays.toString(
myClass.getGenericInterfaces()));
}
}
输出:
GenericInterfaces of myClass: [interface Arr]
参考:https://docs . Oracle . com/javase/9/docs/API/Java/lang/class . html # getGenericInterfaces–
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