How to determine whether a class implements an interface in java

We can use the instanceof keyword to make a judgment. instanceof is a binary operator in Java and is a reserved keyword in Java. The function of the instanceof keyword is to test whether the object on the left is an instance of the class on the right and return the boolean data type. Of course, it can also be used to test the interface.

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Specific code:

public class Test {
    public static void main(String[] args) {
        Student student = new Student();
        System.out.println(student instanceof Person);
    }
}

class Student implements Person {
}

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