Java Utililty Methods Array to String

StringBuilder b = new StringBuilder();
for (String arg : args) {
    b.append(arg);
    b.append(delimiter);
return b.substring(0, b.length() - delimiter.length());

if (arr != null && arr.length > 0) {
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < arr.length; i++) {
        builder.append(arr[i]);
        if (i < arr.length - 1) {
            builder.append("/");
    return builder.toString();
} else {
    return "<no values specified>";

String strInfo = "";
if (arr != null && arr.length > 0) {
    StringBuffer sf = new StringBuffer();
    for (String str : arr) {
        sf.append(str);
        sf.append(expr);
    strInfo = sf.substring(0, sf.length() - 1);
...

String output = "";
for (int i = 0; i < array.length; i++) {
    if (output.equals("")) {
        output = output + array[i];
    } else {
        output = output + ", " + array[i];
return output;

String toReturn = null;
if (null != array) {
    toReturn = "";
    for (int i = 0; i < array.length; i++) {
        toReturn += array[i] + ",\n";
} else {
    System.out.println("arrayToString(null)!");
...

return Arrays.toString(array);

StringBuilder builder = new StringBuilder();
builder.append("{");
int valCount = 0;
for (String val : array) {
    if (valCount++ > 0) {
        builder.append(", ");
    builder.append(val);
...

if (array.length == 0) {
    return "[]";
StringBuilder str = new StringBuilder();
str.append("[").append(array[0]);
for (int i = 1; i < array.length; i++) {
    str.append(" ").append(array[i]);
str.append("]");
return str.toString();

if ((array == null) || (array.length == 0)) {
    return "";
StringBuilder sb = new StringBuilder();
for (String s : array) {
    sb.append(';');
    sb.append(s);
return sb.substring(1);

if (array != null && array.length > 0) {
    return Arrays.deepToString(array).replace(" ", "").replace("[", "").replace("]", "");
return "";