Class Reflection: find out the constructor information

   
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import java.awt.Rectangle;
import java.lang.reflect.Constructor;

public class SampleConstructor {

  public static void main(String[] args) {
    Rectangle r = new Rectangle();
    showConstructors(r);
  }

  static void showConstructors(Object o) {
    Class c = o.getClass();
    Constructor[] theConstructors = c.getConstructors();
    for (int i = 0; i < theConstructors.length; i++) {
      System.out.print("( ");
      Class[] parameterTypes = theConstructors[i].getParameterTypes();
      for (int k = 0; k < parameterTypes.length; k++) {
        String parameterString = parameterTypes[k].getName();
        System.out.print(parameterString + " ");
      }
      System.out.println(")");
    }
  }
}

Related examples in the same category

1.	Constructor Reflection
2.	Creating an Object Using a Constructor Object
3.	Object Reflection: invoke constructor with parameters
4.	Get constructors of a class object
5.	Create object using Constructor object
6.	Getting a Constructor of a Class Object: By obtaining a list of all Constructors object
7.	Getting a Constructor of a Class Object: By obtaining a particular Constructor object.
8.	Passing a parameter to the constructor and calling a method dynamically
9.	Has Declared Constructor
10.	Get all construtors from a class
11.	Gets an array of all Constructor calls for the given class
12.	Adds all Constructor (from Class.getConstructorCalls) to the list
13.	Convert the constructor to a Java Code String (arguments are replaced by the simple types)

Class Reflection: find out the constructor information : Constructor « Reflection « Java

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