Class isInterface() method in Java with Examples
Last Updated :
05 Apr, 2023
The isInterface() method of java.lang.Class class is used to check if this Class is an interface. The method returns true if this Class is an interface. It returns false otherwise.
Syntax:
public boolean isInterface()
Parameter: This method does not accept any parameter.
Return Value: This method returns true if this Class is an interface. It returns false otherwise.
Below programs demonstrate the isInterface() method.
Example 1:
Java
public class Test {
public static void main(String[] args)
throws ClassNotFoundException
{
Class myClass = Class.forName( "Test" );
System.out.println( "Class represented by myClass: "
+ myClass.toString());
System.out.println( "Is Test an interface: "
+ myClass.isInterface());
}
}
|
Output:
Class represented by myClass: class Test
Is Test an interface: false
Example 2:
Java
interface T {
}
public class Test {
public static void main(String[] args)
throws ClassNotFoundException
{
Class myClass = Class.forName( "T" );
System.out.println( "Is T an interface: "
+ myClass.isInterface());
}
}
|
Output:
Is T an interface: true
Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#isInterface–
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