Java3

(a) Constructor method. (b) Static uethod c)Accessor nethod. (d) Mutator method. Answer: (a) All method parametets use the call-by-value nmechanism. (b) Oaly method parameters of primitive type use the call-by-value mechanism (c) All wethod parameters use the call-by-reference mechnaism (d) Oaly method parameters of object type use the call-by-value mechanism. 17. Which of the following types of methods are invoked on objects? Answer:1 (a) Static method (b) Class method. (c) Instance method (d) Elther static or instance methods 18, Consider the following line of codes Whish oe of te fa wl (o) Systen.out.pristln(sowearray [281) (d)ystes.out.priatla(nonsarray[27]); line of cud for daplaying the tweaty-eiehah 19. Assuae the following array variable data has been declazed and gives a vabae ss shown int (013 dsta 19. 17, -4, 21), 15, 24, o. 9) (6, 2. -56, 8 h: Which is the valwe of data.length? Answer: (a) 4 (b)3 (c) 12 (d) (a) 21 (b) 12 e)4 (d) 3 (a) calls the method super as deined in the curreat clas 20. Assume data again. Which is the value of data[0].length? Answer: 21. The instruction super; does which of the following? Answer: (b) calls the method super as delined in the curreat class' parest clas as defined in the eurs (d) calls the constructor as defined in the current class' parent clss