Java Class isInterface() Method21 Mar 2025 | 1 min read The isInterface() method of java Class class checks if the specified class object represents interface or not. If not then return false. SyntaxParameterNA Returnstrue if this object represents an interface; false otherwise. ThrowsNA Example 1Output: It is an interface ? : false Example 2Output: true Next TopicJava Class |
Java Class Method The method of java Class class returns the Class object representing the class in which it was declared if the class or the interface represented by this Class object is a member of another class. Otherwise, it returns null. Syntax public Class<?> ...
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Java Class Method The method of java Class class returns the Java language modifiers for this class or interface. The modifiers contain the Java Virtual Machine's constants for the public, protected, private, final, static, abstract and interface. Syntax public int Parameter NA Returns The integer representing the modifiers for...
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Java Class Method The method of java Class class returns a Constructor object that reflects the public constructor of the class. Syntax public Constructor<T> getConstructor(Class<?>... parameterTypes) throws NoSuchMethodException, SecurityException Parameter parameterTypes - the parameter array. Returns Constructor object. Throws NoSuchMethodException , SecurityException Example 1 //import statements import java.lang.reflect.*; public class ClassgetConstructorExample1 { public...
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Java Class Method The method of java Class class returns an AnnotatedType object that shows the use of a type to specify the superclass of the entity represented by this(calling class object) Class object. Syntax public AnnotatedType Parameter No parameter is passed. Returns An object representing the superclass Throws Does not...
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Java Class Method The method of java Class class checks if the specified object can be assigned to object represented by that class, i.e., if both the objects are an instance of the same class or not. Syntax public boolean isInstance(Object obj) Parameter obj - the object to...
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Java Class Method The method of java Class class returns the ProtectionDomain of this class. This method internally calls the checkPermission() method of the Security Manager (installed with this class) is called with a RuntimePermission to check if it is okay to get the...
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Java Class Method The method of java Class class returns an array of field objects representing all the fields defined in this class object. If no filed is declared, then it returns an array of length 0. Syntax public Field[] throws SecurityException Parameter NA Returns An array of field object. Throws Security...
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Java Class Method The method of java Class class returns this element's annotation for the specified type if any annotation is directly present otherwise null. Syntax public <A extends Annotation> A getDeclaredAnnotation(Class<A> annotationClass) Parameter annotationClass - the Class object corresponding to the annotation type Returns annotation for the specified annotation...
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Java Class Method The method of java Class class gets the annotation by type that is associated with this element. If no annotation is related to this element, it returns an array of length 0. Syntax public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationClass) Parameter annotationClass - the Class...
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Java Class Method The getDeclaredConstructoe() method of java Class class returns a constructor object representing all the constructors present in the class. Syntax public Constructor<T> getDeclaredConstructor(Class<?>... parameterTypes) throws NoSuchMethodException, SecurityException Parameter parameterTypes - the parameter array Returns Constructor object. Throws NoSuchMethodException , SecurityException Example 1 import java.lang.reflect.Constructor; public class ClassgetDeclaredConstructorExample1 { ...
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