CR-MicroLabs-Loops-NumbersTrianglesTables/NumberUtilities.java

public class NumberUtilities {

    public static String getRange(int stop) {
        StringBuilder builder = new StringBuilder();
        for(int i= 0; i < stop ;i++)
        {
            builder.append(i);

        }
        return builder.toString();
    }

    public static String getRange(int start, int stop) {
        StringBuilder builder = new StringBuilder();
        for(int i = start;i < stop;i++)
        {
            builder.append(i);
        }
        return builder.toString();
    }

    public static String getRange(int start, int stop, int step) {
        StringBuilder builder = new StringBuilder();
        for(int i =start; i < stop ;i = i + step)
        {
            builder.append(i);
        }
        return builder.toString();
    }
    public static String getEvenNumbers(int start, int stop) {
        StringBuilder builder = new StringBuilder();
        for(int i =start; i < stop ;i++)
        {
            if(i % 2 == 0)
            {
                builder.append(i);
            }
        }
        return builder.toString();
        
    }


    public static String getOddNumbers(int start, int stop) {
       StringBuilder builder = new StringBuilder();
        for(int i =start; i < stop ;i++)
        {
            if(i % 2 != 0)
            {
                builder.append(i);
            }
        }
        return builder.toString();
    }

    public static String getExponentiations(int start, int stop, int exponent) {
        StringBuilder builder = new StringBuilder();
        for(int i =start;i <= stop;i++)
        {
            int newPower = (int)Math.pow(i,exponent);
            builder.append(newPower);
        }
          return builder.toString();  
    }
}