CR-MicroLabs-Loops-NumbersTrianglesTables/TableUtilities.java

 

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

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

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