Please add comments in the program detailing your solution for each problem. Why you

chose the loop you used $-$ counter$-$based, early$-$test, etc. Your comments should contain

a very brief $($maximum $4$ lines$)$ description of each solution.

All programs will be tested for completeness on three different test cases.

Unless otherwise specified please do not use pre$-$defined libraries or functions.

JAVA

Problem $5$: $(5$ points$)$

Given a $2$D array A$,$ your task is to convert all the rows to columns and columns to rows and

multiplies each element by $3.$