CR-MicroLabs-Loops-NumbersTrianglesTables/NumberUtilities.java

public class NumberUtilities {
    public static String getRange(int stop) {
        String start = "";
        for(int i=0;i<stop;i++){
            start = start+i;
        }    return start;
    }

    public static String getRange(int start, int stop) {
        String range = "";
        for(int i=start;i<stop;i++){
            range +=i; 
        }
        return range;
    }

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

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

    }

    public static String getOddNumbers(int start, int stop) {
        StringBuilder odd = new StringBuilder();
        for(int i=start;i<stop;i++){
            if(i%2==1){
                odd.append(i);
            }
        }return ""+odd;
    }

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