1) Given obj1.setWeight(5); Does the method setWeight have access to most of the instance variables of obj1.

2) Valid or Invalid.

X obj=new X(); /

obj.a = 20;

obj.b=30;

3) Valid or Invalid.

boolean flg=obj1

4) From part 2, Valid or Invalid

X obj=new X();

obj.c=10;

X.c=20;