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Java program to get the list of constructors of a class

Java example to get the list of constructors of a class.
Submitted by Nidhi, on May 07, 2022

Problem Solution:

In this program, we will get the list of constructors of a class using the getConstructors() method and print the result.

Program/Source Code:

The source code to get the list of constructors of a class is given below. The given program is compiled and executed successfully.

// Java program to get the list of 
// constructors of a class

import java.lang.reflect.Constructor;

public class Main {
  public static void main(String[] args) throws ClassNotFoundException {
    Class cls = Class.forName("java.lang.Integer");
    Constructor ctors[] = cls.getConstructors();

    System.out.println("Constructors of Integer class: ");
    for (Constructor ctor: ctors)
      System.out.println(ctor);
  }
}

Output:

Constructors of Integer class: 
public java.lang.Integer(java.lang.String) throws java.lang.NumberFormatException
public java.lang.Integer(int)

Explanation:

In the above program, we created a public class Main that contains a main() method. The main() method is the entry point for the program.

In the main() method, we get the list of constructors of the Integer class using the getConstructors() method and printed the constructors using the foreach loop.

Java Class and Object Programs »


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