Write it, run it, read the output

Reading · 4 minQuiz · 5 questions2 code drills · run only

This is a scratch drill — your code runs, nothing is graded or recorded. No test cases, no expected output, no verdict.

TASK

Store the exact 3 x 4 matrix, count its zero entries with nested loops, derive the nonzero count from 12 - zeroCount, and print that the matrix is sparse using a strict comparison.

Java

Loading editor…

OUTPUT

Sample

The matrix is sparse.

What a finished answer prints, from the lesson. Nothing has run yet — press Run and this is replaced by your program’s own output.

Previous · Check if a Matrix is an Identity Matrix3 parts left before this item is marked done.