concat

package stringHomeTask;

public class HomeTask5 {

    public static void main(String[] args) {

    for (int i = 10; i <= 100000; i *= 10) {

        long startString = System.nanoTime();
        concat(i);
        long stopString = System.nanoTime();

        long startBuilder = System.nanoTime();
        concatBuilder(i);
        long stopBuilder = System.nanoTime();

        long resultConcat = stopString - startString;
        long resultBuilder = stopBuilder - startBuilder;

        if (resultBuilder < resultConcat) {
        System.out.println("StringBuilder method combines a string of " + i + " characters to " + (resultConcat / resultBuilder)
            + " faster than the String method");
        } else if (resultConcat < resultBuilder) {
        System.out.println("String method combines a string of " + i + " characters to " + (resultBuilder / resultConcat)
            + " faster than the StringBuilder method");
        } else {
        System.out.println("These same methods");
        }
    }
    }

    public static String concat(int value) {
    String result = "";
    for (int i = 0; i < value; i++) {
        //result.concat(i+"".concat(" "));
        result = result + i + " ";
    }
    return result;
    }

    public static StringBuilder concatBuilder(int value) {
    StringBuilder result = new StringBuilder();
    for (int i = 0; i < value; i++) {
        result.append(i + " ");
    }
    return result;
    }
}