BlueJ.NumbersTrianglesTables/TableUtilities.java at e6337dbd6dcd07f6d23525800f1e06c54a63f4fb · Zipcoder/BlueJ.NumbersTrianglesTables · GitHub

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 public class TableUtilities {
    public static String getSmallMultiplicationTable() {
        String outcome = "";
        String convert;
        int multiple;

        for (int i = 1; i <= 5; i++) {
            for (int j = 1; j <= 5; j++) {
                multiple = i * j;
                convert = Integer.toString(multiple);

                if (multiple >= 10) {
                    if (j == 5) {
                        outcome += " " + convert + " |\n";
                    } else {
                        outcome += " " + convert + " |";
                    }
                } else {
                    if (j == 5) {
                        outcome += "  " + convert + " |\n";
                    } else {
                        outcome += "  " + convert + " |";
                    }
                }
            }
        }

        return outcome;
    }

    public static String getLargeMultiplicationTable() {
        String outcome = "";
        String convert;
        int multiple;

        for (int i = 1; i <= 10; i++) {
            for (int j = 1; j <= 10; j++) {
                multiple = i * j;
                convert = Integer.toString(multiple);

                if (multiple >= 100) {
                    if (j == 10) {
                        outcome += "" + convert + " |\n";
                    } else {
                        outcome += "" + convert + " |";
                    }
                } else if (multiple >= 10){
                    if (j == 10) {
                        outcome += " " + convert + " |\n";
                    } else {
                        outcome += " " + convert + " |";
                    }
                } else {
                    if (j == 10) {
                        outcome += "  " + convert + " |\n";
                    } else {
                        outcome += "  " + convert + " |";
                    }
                }
            }
        }

        return outcome;
    }

    public static String getMultiplicationTable(int tableSize) {
        String outcome = "";
        String convert;
        int multiple;

        for (int i = 1; i <= tableSize; i++) {
            for (int j = 1; j <= tableSize; j++) {
                multiple = i * j;
                convert = Integer.toString(multiple);

                if (multiple >= 100) {
                    if (j == tableSize) {
                        outcome += "" + convert + " |\n";
                    } else {
                        outcome += "" + convert + " |";
                    }
                } else if (multiple >= 10){
                    if (j == tableSize) {
                        outcome += " " + convert + " |\n";
                    } else {
                        outcome += " " + convert + " |";
                    }
                } else {
                    if (j == tableSize) {
                        outcome += "  " + convert + " |\n";
                    } else {
                        outcome += "  " + convert + " |";
                    }
                }
            }
        }

        return outcome;
    }
}