how to get the type of a child class?

rebirth

Here's an example

class A
{
  A() {
  }
}

class B extends A
{
  B() {
  }
}

class C extends A
{
  C() {
  }
}

void draw()
{
  A obj;
  if (random(0, 1) > .5)
    obj = new B();
  else
    obj = new C();

   //what type is obj?
}

How can I tell what type object "obj" is?

amnon

println(obj.getClass().getSimpleName());

quark

Here are 2 other ways to test the type of class.

void setup() {
  size(440,200);
  frameRate(10);
}

void draw()
{
  background(255);
  fill(0);
  A obj;
  if (random(0, 1) > .5)
    obj = new B();
  else
    obj = new C();

  if (obj.getClass() == A.class) // always false
    text("B class object", 20, 20);
  if (obj.getClass() == B.class)
    text("B class object", 20, 40);
  if (obj.getClass() == C.class)
    text("C class object", 20, 60);

  if (obj instanceof A)  // Always true
    text("Instance of A", 220, 20);
  if (obj instanceof B)
    text("Instance of B", 220, 40);
  if (obj instanceof C)
    text("Instance of C", 220, 60);
}

Notice that the instanceof operator also recognises the object's parent class.

rebirth

Thank you!