java check if class implements interface

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if (SomeInterface.class.isAssignableFrom(SomeClass.class)) {
  	// ...
}

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// Example interface

interface SomeInterface {
	// ...
}

// Example class

class SomeClass implements SomeInterface {
	// ...
}


// Inheritance testing:

Class<?> interfaceType = SomeInterface.class;
Class<?> classType = SomeClass.class;

if (interfaceType.isAssignableFrom(classType)) {
  	// ...
}

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Class<?> interfaceType = SomeInterface.class;
Class<?> classType = SomeClass.class;

if (interfaceType.isAssignableFrom(classType)) {
  	// ...
}