Write
a java program to
obtain constructors of a class?
Answer:
class ConsInfo
{
public static void main (String [] args)
{
if (args.length==0)
{
System.out.println
("PLEASE PASS THE CLASS NAME..!");
}
else
{
try
{
Class c=Class.forName (args
[0]);
printConsts
(c);
}
catch (ClassNotFoundException cnfe)
{
System.out.println
(args [0]+" DOES NOT EXISTS...");
}
}
}
static void printConsts
(Class c)
{
java.lang.reflect.Constructor
Cons []=c.getConstructors ();
System.out.println
("NUMBER OF CONSTRUCTORS =
"+Cons.length);
System.out.println
("NAME OF THE CONSTRUCTOR : "+c.getName());
for (int i=0;
i<Cons.length; i++)
{
System.out.print
(c.getName ()+"(");
Class cp []=Cons [i].getParameterTypes
();
for (int j=0;
j<cp.length; j++)
{
System.out.print
(cp [j].getName ()+")");
}
System.out.println
("\b"+")");
}
}
};
