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

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

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