CR-MicroLabs-Loops-NumbersTrianglesTables/NumberUtilities.java

import java.lang.*;


public class NumberUtilities {
    
    public static String getRange(int stop) {
        String str = "";
        for(int i = 0; i < stop; i++)
        {
            str = str.concat(Integer.toString(i));
        }
        return str;
    }
    
    public static String getRange(int start, int stop) {
        String str = "";
        for(int i = start; i < stop; i++)
        {
            str = str.concat(Integer.toString(i));
        }
        return str;
    }

    public static String getRange(int start, int stop, int step) {
        String str = "";
        for(int i = start; i < stop; i += step)
        {
            str = str.concat(Integer.toString(i));
        }
        return str;
    }
    
    
    public static String getEvenNumbers(int start, int stop) {
        int startEven = (start % 2 != 0) ? start + 1 : start;
        String str = "";
        for(int i = startEven; i < stop; i += 2)
        {
            str = str.concat(Integer.toString(i));
        }
        return str;
    }

    public static String getOddNumbers(int start, int stop) {
        int startOdd = (start % 2 == 0) ? start + 1 : start;
        String str = "";
        for(int i = startOdd; i < stop; i += 2)
        {
            str = str.concat(Integer.toString(i));
        }
        return str;
    }


    public static String getExponentiations(int start, int stop, int exponent) {
        String str = "";
        double exponentD = exponent;
        int tempInt;
        for(double i = start; i <= stop; i++)
        {
            tempInt = (int)(Math.pow(i, exponentD));
            str = str.concat(Integer.toString(tempInt));
        }
        return str;
    }
}