Java Class getDeclaredConstructors() Method21 Mar 2025 | 1 min read The getDeclaredConstructors() method of java Class class returns an array of constructor objects representing all the constructors defined in this class object. If no constructor is declared, then it returns an array of length 0. SyntaxParameterNA ReturnsAn array of constructor object. ThrowsSecurityException Example 1Output: no argument constructor Constructor : 1 = private ClassgetDeclaredConstructorsExample1() Constructor : 2 = public ClassgetDeclaredConstructorsExample1(java.lang.Double,java.lang.Long) Example 2Output: private ClassgetDeclaredConstructorsExample2(java.lang.String) public ClassgetDeclaredConstructorsExample2(int) public ClassgetDeclaredConstructorsExample2() Next TopicJava Class |
Java Class Method The method of java Class class returns annotations that are directly present on this element and ignore inherited annotations. If no annotation is set, then it returns 0. Syntax public Annotation[] Parameter NA Returns All the annotations present on this element. Throws NA Example 1 //import statements import java.lang.annotation.Retention; ...
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Java Class Method The method of java Class class returns true if the underlying class is an anonymous class. Syntax public boolean Parameter NA Returns true if this class Is an anonymous class. Throws NA Example 1 //import statements import java.lang.*; public class ClassisAnonymousClassExample1 { public static void main(String[] args) { ...
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Java Class Method The method of java Class class returns a field object which represents the public member field of the class or interface represented by this Class object. A string specifying the simple name of the desired field is passed as the parameter. Syntax public...
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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 the interfaces directly implemented by the class or the interface represented by the current object. Syntax public Class<?>[] Parameter No parameter is passed. Returns An array of interfaces. Throws Does not throw an exception. Example 1 //import statements import java.lang.*; import java.util.*; public class...
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Java Class Method The method of java Class class returns an array of the objects of the type AnnotatedType that represents the use of types to specify superinterfaces of the entity represented by this(Current class object) Class object. Syntax public AnnotatedType[] Parameter No parameter is passed. Returns An array...
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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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Java Class Method The method of java Class class gets the superclass of this class. If no superclass exists then null is returned. Syntax public Class<? super T> getSuperclass() Parameter NA Returns Immediate superclass of the class Throws NA Example 1 import java.lang.*; public class ClassgetSuperClassExample1 extends Object { public static void main(String...
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Java Class () Method The () method of java Class returns the class representing the component type of an array. Otherwise this method return null. Syntax public Class<?> () Parameter NA Returns Class representing the component type. Throws This does not throw an exception. Example 1 //import statements import java.lang.*; public class ClassExample1 { public...
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Java Class Method The method of Java Class class returns the Class object associated with the class or interface with the given name in the parameter as String. Syntax This method is overloaded in the following ways. public static Class<?> forName(Module module, String name) public static Class<?>...
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