#054 Traversing 2D Arrays

At what index does an array in Java typically start?

• 1

• -1

• 0

• Depends on the array type

Which loop(s) is/are NOT mentioned in the video for traversing arrays?

• For loop

• For each loop

• While loop

• Do-while loop

In Java, 2D arrays are said to be:

• Column major

• Row major

• Matrix major

• Index major

What does the .length property return for a 2D array in Java?

• The total number of elements

• The number of columns

• The number of rows

• The length of the longest row

What are the common variable names used for row and column in the video?

• x and y

• i and j

• row and col

• r and c

What is the result of arr.length for a 2D array where arr = {{1,2},{3,4},{5,6}}?

• 2

• 3

• 6

• undefined