Java Utililty Methods Array to String

StringBuffer buffer = new StringBuffer();
if (objs != null) {
    for (int i = 0; i < objs.length; i++) {
        buffer.append(objs[i]).append(",");
buffer.deleteCharAt(buffer.length() - 1);
return buffer.toString();
...

if (array == null || array.length <= 0)
    return null;
StringBuilder builder = new StringBuilder();
for (int i = 0; i < array.length - 1; i++) {
    builder.append(array[i]);
    builder.append(SPLIT_SYMBOL);
builder.append(array[array.length - 1]);
...

StringBuffer buffer = new StringBuffer();
for (int i = 0; i < array.length; i++) {
    buffer.append(",").append(array[i]);
return buffer.toString().replaceFirst(",", "");

StringBuilder sb = new StringBuilder();
String delim = "";
if (category.length >= 1) {
    for (int i = 0; i < category.length; i++) {
        sb.append(delim).append(category[i]);
        delim = "#";
return sb.toString();

if (p == null)
    return null;
StringBuffer sb = new StringBuffer();
for (int i = 0; i < p.length; i++) {
    if (i == 0)
        sb.append(p[i]);
    else
        sb.append(spliter).append(p[i]);
...

String result = "";
if (values == null) {
    return result;
int len = values.length;
for (int i = 0; i < len; i++) {
    result += values[i] + ",";
if (result.endsWith(",")) {
    result = result.substring(result.length() - 1);
return result;

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

if (array != null && array.length == 0) {
    return null;
StringBuilder sb = new StringBuilder();
for (T t : array) {
    sb.append(t.toString() + splitFlag);
int sbLen = sb.length();
...

String str = "";
for (int i = 0; i < ar.length; i++) {
    str += ar[i] + ",";
return str;

StringBuffer buffer = new StringBuffer();
appendInt(buffer, a.length);
int runValue = a[0];
int runLength = 1;
for (int i = 1; i < a.length; ++i) {
    int s = a[i];
    if (s == runValue && runLength < 0xFFFF) {
        ++runLength;
...