ColumnSumms.java: This program calculates the sum of each column in a 2D array. RowSums.java: This program calculates the sum of each row in a 2D array. This project is open-source. Permission is ...

This Java program performs two main functions: It calculates the sum of elements in an array entered by the user. It checks whether the sum of the array is an Armstrong number. An Armstrong number is ...