Java Utililty Methods Array Empty Check

List of utility methods to do Array Empty Check

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Description

The list of methods to do Array Empty Check are organized into topic(s).

Method

booleanisNullOrEmptyOrFirstElementBlank(String[] values)
is Null Or Empty Or First Element Blank 
return isArrayNullOrEmpty(values) || values[0].equals("");
String[]normalizeTokens(String[] tokens, boolean removeEmpty)
normalize Tokens 
for (int i = 0; i < tokens.length; i++) {
    tokens[i] = normalizeString(tokens[i]);
if (removeEmpty) {
    tokens = removeEmpty(tokens);
return tokens;
booleannullOrEmpty(Object[] array)
null Or Empty 
return (array == null) || (array.length == 0);
String[]removeEmpty(String[] strings)
Removes nulls and empty strings from the given string array. 
String[] result = new String[strings.length];
int copied = 0;
for (String s : strings) {
    if (s != null && !s.isEmpty()) {
        result[copied++] = s;
return copied == result.length ? result : Arrays.copyOf(result, copied);
...
String[]removeEmptyElements(String[] firstArray)
Removes empty (or null) element from a given string array and returns a copy without thouse elements 
List<String> stringList = new ArrayList<String>();
for (String string : firstArray) {
    if (string != null && string.trim().length() > 0) {
        stringList.add(string);
firstArray = stringList.toArray(new String[stringList.size()]);
return firstArray;
...
String[]removeEmptyEntries(String[] array)
remove Empty Entries 
if (array == null || array.length == 0) {
    return array;
List<String> result = new ArrayList<String>();
for (String entry : array) {
    entry = removeEmptyEntry(entry);
    if (entry != null) {
        result.add(entry);
...
ArrayListremoveEmptyLines(String lines[])
remove Empty Lines 
ArrayList<String> result = new ArrayList<String>();
for (int i = 0; i < lines.length; i++) {
    if (!lines[i].trim().isEmpty()) {
        result.add(lines[i]);
return result;
String[]removeEmptyString(final String[] words)
Removes empty Strings from the given string array and gives it back. 
List<String> al = new ArrayList<String>();
for (int i = 0; i < words.length; i++) {
    if (!words[i].isEmpty()) {
        al.add(words[i]);
return al.toArray(new String[al.size()]);
String[]removeEmptyString(String[] strOrigin)
Remove empty string elements from origin string array 
List<String> strList = new ArrayList<String>();
for (String str : strOrigin) {
    if (str != null && !str.trim().isEmpty()) {
        strList.add(str);
return strList.toArray(new String[0]);
String[]removeEmptyStrings(String[] data)
Removes empty or null strings from an array 
ArrayList<String> result = new ArrayList<String>();
for (int k = 0; k < data.length; k++)
    if (!data[k].equals(""))
        result.add(data[k]);
String[] res = new String[result.size()];
result.toArray(res);
return res;