Java Class .getDeclaredConstructors ()
Syntax
Class.getDeclaredConstructors() has the following syntax.
public Constructor <?>[] getDeclaredConstructors() throws SecurityException
Example
In the following code shows how to use Class.getDeclaredConstructors() method.
/* w w w. ja v a 2s. co m*/
import java.lang.reflect.Constructor;
public class Main {
public static void main(String[] args) {
MyClass cls = new MyClass();
Class c = cls.getClass();
// constructors
Constructor[] ct = c.getDeclaredConstructors();
for(int i = 0; i < ct.length; i++) {
System.out.println("Constructor found: " + ct[i].toString());
}
}
}
class MyClass{
public MyClass() {
System.out.println("no argument constructor");
}
public MyClass(Double d, Long l) {
this.d = d;
this.l = l;
}
Double d = new Double(3.9d);
Long l = new Long(123);
}
The code above generates the following result.
