CR-MicroLabs-Loops-NumbersTrianglesTables/TableUtilities.java

public class TableUtilities {
    public static String getSmallMultiplicationTable() {
        StringBuilder fullTable = new StringBuilder();
        for(int i=1; i<=5; i++){
            StringBuilder tableRow = new StringBuilder();
            String str;
            for (int j=1; j<=5; j++){
                str = String.format("%3d |", i*j);
                tableRow.append(str);
            }
            fullTable.append(tableRow +"\n");
        }
        return fullTable.toString();
    }

    public static String getLargeMultiplicationTable() {
        StringBuilder fullTable = new StringBuilder();
        for(int i=1; i<=10; i++){
            StringBuilder tableRow = new StringBuilder();
            String str;
            for (int j=1; j<=10; j++){
                str = String.format("%3d |", i*j);
                tableRow.append(str);
            }
            fullTable.append(tableRow +"\n");
        }
        return fullTable.toString();
    }

    public static String getMultiplicationTable(int tableSize) {
        StringBuilder fullTable = new StringBuilder();
        for(int i=1; i<=tableSize; i++){
            StringBuilder tableRow = new StringBuilder();
            String str;
            for (int j=1; j<=tableSize; j++){
                str = String.format("%3d |", i*j);
                tableRow.append(str);
            }
            fullTable.append(tableRow +"\n");
        }
        return fullTable.toString();
    }
}