1. Create a variable, largestColumn, that will store the index value of the column with the largest sum. 2. Create a variable, largestSum that will store the sum value of the column with the largest ...

In 2D arrays, we have square brackets in the declaration but in the 1D array we use one square bracket to declare it(int[] ar=new int[]) and in 2D matrix declaration first bracket is used to specify ...