Question

java

To access the element at row i and column / of a two-dimensional array named grades, we would use which of the following? O grades01 O grades(1) grades grades[J] QUESTION 6 Which of the following are errors in this syntax declaring a two-dimensional array? datatype [4) (0] [3] arrayNam: The brackets must be empty There must be two brackets, not three The syntax must end in a semicolon, not a colon All of these are errors in the syntax

Answer 1

Question 5 :- first option grades[ i ][ j ] is correct

Reason:- given row index= i and column index = j

In two dimensional array we use the following syntax to represent row index and column index in a 2D array

syntax:- datatype array_name[row_index][column_index];

grades[ i ][ j ]; is correct syntax to use

Question 6:- option d all of these are errors in syntax  is correct  

Reason :- given datatype [ 4][ 0 ][ 3 ] arrayNam:

according syntax it should contain only two brackets for row and column indexes respectively and a syntax should not end with colon