code: @Pure
  	public IntegerProperty z2Property() {
  		if (this.p2.z == null) {
  			this.p2.z = new SimpleIntegerProperty(this, MathFXAttributeNames.Z2);
  		}
  		return this.p2.z;
  	}
docs: Replies the property that is the z coordinate of the second segment point.
  
  @return the z2 property.