Java Class getConstructor() Method21 Mar 2025 | 1 min read The getConstructor() method of java Class class returns a Constructor object that reflects the public constructor of the class. SyntaxParameterparameterTypes - the parameter array. ReturnsConstructor object. ThrowsNoSuchMethodException , SecurityException Example 1Output: public java.lang.String(java.lang.String) //class path Example 2Output: Default Constructor... Parameterized Constructor....(one parameter) public ClassgetConstructorExample2$Class1() public ClassgetConstructorExample2$Class1(int) public ClassgetConstructorExample2$Class1(java.lang.String,java.math.BigInteger[]) Next TopicJava Class |
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 annotations that are present on this element. If there are no annotations present on this element, then it returns an array of length 0. The caller of this method can modify the returned array. Syntax public...
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Java Class Method The method of java Class class returns an array containing the Class objects which represents all the public classes and interfaces that are members of the class represented by the Class object. Syntax public Class<?>[] Parameter NA Returns Returns an array of class object. Throws SecurityException Example 1 import java.lang.*; public...
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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 returns an array of method objects representing all the methods defined in this class object. If no method is declared, then it returns an array of length 0. Syntax public Method[] throws SecurityException Parameter NA Returns An array of method...
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Java Class Method The method of java Class class is used to get the fully qualified name of the package. If no package name is specified, then it returns an empty string. Syntax public String Parameter No parameter is passed. Returns Return package name as a string. Throws NA Example 1 //import statements import...
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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 an annotation for the specified type is present on this element, false otherwise. Syntax public boolean isAnnotationPresent(Class<? extends Annotation> annotationClass) Parameter annotationClass - the Class object corresponding to the annotation type Returns true if an annotation for the...
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Java Class Method The method of java Class class returns the Type representing the direct superclass of the class, interface, primitive type or void represented by this Class. Syntax public Type getGenericSuperclass() Parameter Does not take the parameter. Returns the direct superclass of the class represented by this object. Throws GenericSignatureFormatError TypeNotPresentException...
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Java Class Method The getGenericSuperClass() method of java Class class returns a method object representing the specified public member method of the class or interface represented by this Class object. The name parameter is passed as a string. Syntax public Method getMethod(String name, Class<?>... parameterTypes) throws NoSuchMethodException,...
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