How many elements are there in a two-dimensional array declared as int a[5][4], and how much memory does it occupy if an int takes 4 bytes?
Arrays
Original Khojo Papers practice question — not from a past board paper.
for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) System.out.print(a[j][i] + " "); System.out.println(); }
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Printing a[j][i] instead of a[i][j] reads the matrix down its columns, which is the transpose.
From the same topic and chapter, at a similar level.
How many elements are there in a two-dimensional array declared as int a[5][4], and how much memory does it occupy if an int takes 4 bytes?
Arrays
State the worst-case number of comparisons made by bubble sort on an array of n elements.
Arrays
Write a Java program segment to sort a one-dimensional integer array in ascending order using selection sort.
Arrays
Write a Java program segment to find the sum of the elements of the left diagonal of a square matrix a of size n.
Arrays
Write a Java program segment to search for a value v in a sorted array a of size n using binary search.
Arrays
State and verify the absorption law X + X·Y = X using a truth table.
Boolean Algebra