chk same obj, not null, not expected class, values

this == obj; OR Class1 var1 = (Class1) obj1; (x == obj1.x && y == obj1.y);

return <ur printout>

@Override above the method

super(param1); this(defaultParam2);

constructor-super, new methods2-3

MULTIPLE CONSTRUCTORS, EMPTY CONSTRUCTOR

same method, multiple param nums AND dtypes

String var1 = super.method1();

child class method overwrites parent class method

Create 08. Write class SpecialDirector

Create 07B. Corresponding methods

Overwrite - METHOD, PARAMS

this.attr1 = new ArrayList<Class1>();

super(x,y);

public, protected, no set level, private

Create 04. James' video calls

Create 03B. Thesis inherits book

setParentAttribute(value1) OR super(value1, ...)

Create 02B. Boat's inheritors

class SubClass1 extends ParentClass { }

Create 01B Inheritance relationships

Parent-Ancestor vs Child; super vs sub