CR-MicroLabs-Loops-NumbersTrianglesTables/TableUtilities.java

import java.util.*;
public class TableUtilities {

    public static String getSmallMultiplicationTable() {
        StringBuilder build = new StringBuilder();

        for(int i = 1;i <= 5;i++)
        {
            for(int j =1;j <= 5;j++)
            {
                int k  = i * j;
                build.append(String.format("%3d |",k));

            }
            build.append("\n");
        }
        return build.toString();
    }

    public static String getLargeMultiplicationTable() {
        StringBuilder build = new StringBuilder();

        for(int i = 1;i <= 10;i++)
        {
            for(int j =1;j <= 10;j++)
            {
                int k  = i * j;
                String x = String.format("%3d |",k);
                build.append(x);

            }
            build.append("\n");
        }
        return build.toString();
    }

    public static String getMultiplicationTable(int tableSize) {
        StringBuilder build = new StringBuilder();

        for(int i = 1;i <= tableSize;i++)
        {
            for(int j =1;j <= tableSize;j++)
            {
                int k  = i * j;
                String x = String.format("%3d |",k);
                build.append(x);

            }
            build.append("\n");
        }
        return build.toString();

    }
}