/****************************************************** *Displays a two-dimensional table showing how interest *rates affect bank balances. ******************************************************/ public class InterestTable { public static void main(String[] args) { int[][] table = new int[10][6]; int row, column; for (row = 0; row < 10; row++) for (column = 0; column < 6; column++) table[row][column] = balance(1000.00, row + 1, (5 + 0.5*column)); System.out.println("Balances for Various Interest Rates"); System.out.println("Compounded Annually"); System.out.println("(Rounded to Whole Dollar Amounts)"); System.out.println("Years 5.00% 5.50% 6.00% 6.50% 7.00% 7.50%"); System.out.println(); for (row = 0; row < 10; row++) { System.out.print((row + 1) + " "); for (column = 0; column < 6; column++) System.out.print("$" + table[row][column] + " "); System.out.println(); } } /**************************************************************** *Returns the balance in an account that starts with startBalance *and is left for the indicated number of years with rate as the *interest rate. Interest is compounded annually. The balance is *rounded to a whole number. ****************************************************************/ public static int balance(double startBalance, int years, double rate) { double runningBalance = startBalance; int count; for (count = 1; count <= years; count++) runningBalance = runningBalance*(1 + rate/100); return (int) (Math.round(runningBalance)); } }