Consider the following code int val = arr[0][3]; Which value is stored in the Va

Question

Consider the following code int val = arr[0][3]; Which value is stored in the Val variable? The value stored: In the first row and the second column In the fact row and the first column In the first row and the fourth column In the third row and the second column How many elements can be stored in a two-dimensional 3 row by 7 columns 2D array? 5 6 21 30 A method in a class that modifier information about an object is called a/an method. void accessor mutator constructor Which of the following statements about constructors is correct? A class can have only one constructor. A constructor should always return a value. A constructor must have the same name as the class. A class must have at least one constructor supplied by the programmer. Which operator should you use to test whether two references point to the same object? -- !-

Explanation / Answer

//solutions

12.

option:c

First row and Fourth coloum

explanantion:0th index means 1st element and hence 3rd index means 4th element

13.option c

21 elements

explanation:each row can hold 7 elements because colums are 7.so total 3 rows .Hence 21

14.

option b

explanation:accessor

15.option c

constructor must have same name as that of class

16.option a

==

explntion:this means equal to

17.option d

18.opton c

private access

explanaton:

visibility:

- means private,+means public ,# menas protected and ~ means package.all literals come under single quotes

19.

option A

object oriented

20.

option A

inside the methods of same class

21

option c

they have dfferent parameter lists

22.option b

object 's memory addree

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