CR-MicroLabs-Loops-NumbersTrianglesTables/TableUtilities.java

public class TableUtilities {
    public static String getSmallMultiplicationTable() {
        StringBuilder table = new StringBuilder();
        String cell = "%3d |";

        for(int row=1; row<=5; row++){
            for(int i=1; i<=5; i++){
                int value = row * i;
                table.append(String.format(cell, value));
            }
            table.append("\n");
        }
        return table.toString();
    }

    public static String getLargeMultiplicationTable() {
        StringBuilder table = new StringBuilder();
        String cell = "%3d |";

        for(int row=1; row<=10; row++){
            for(int i=1; i<=10; i++){
                int value = row * i;
                table.append(String.format(cell, value));
            }
            table.append("\n");
        }
        return table.toString();
    }

    public static String getMultiplicationTable(int tableSize) {
        StringBuilder table = new StringBuilder();
        String cell = "%3d |";

        for(int row=1; row<=tableSize; row++){
            for(int i=1; i<=tableSize; i++){
                int value = row * i;
                table.append(String.format(cell, value));
            }
            table.append("\n");
        }
        return table.toString();
    }
}