Constructor getName() method in Java with Examples

Constructor getName() method in Java with Examples

Last Updated : 29 Oct, 2019

The constructor class provides information about a single constructor for a class and it also provides access to that constructor. The getName() method of java.lang.reflect.Constructor is used to return this constructor name, as a string. Constructor name is the binary name of the constructor's declaring class. Syntax:

public String getName()

Parameters: This method accepts nothing. Return: This method returns the simple name of the underlying member in String format. Below programs illustrate getName() method: Program 1:

Java

// Java program to illustrate getName() method

import java.lang.reflect.Constructor;

public class GFG {

    public static void main(String[] args)
    {
        // create a class object
        Class classObj = String.class;

        // get Constructor object array
        // from class object
        Constructor[] con
            s
            = classObj.getConstructors();

        // apply getName method
        System.out.println("Constructor : "
                           + cons[0].getName());
    }
}

Output:

Constructor : java.lang.String

Program 2:

Java

// Java program to illustrate getName() method

import java.lang.reflect.Constructor;
import java.util.ArrayList;

public class GFG {

    public static void main(String[] args)
    {
        // get Constructor object for class object
        Constructor constructor
            = ArrayList.class.getConstructors()[0];

        // apply getName method
        String name = constructor.getName();

        // print result
        System.out.println("Constructor Name : "
                           + name);
    }
}

Output:

Constructor Name : java.util.ArrayList

References: https://docs.oracle.com/javase/10/docs/api/java/lang/reflect/Constructor.html#getName(java.lang.Object)

Constructor getName() method in Java with Examples

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