Android Utililty Methods String Array Search

List of utility methods to do String Array Search

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Description

The list of methods to do String Array Search are organized into topic(s).

Method

intindexOf(String[] datas, String val)
index Of 
if (val != null) {
    for (int i = 0; i < datas.length; i++) {
        if (datas[i].equals(val)) {
            return i;
return -1;
...
intindexOf(String[] datas, String val)
index Of 
if (val != null && datas != null) {
    for (int i = 0; i < datas.length; i++) {
        if (datas[i] != null && datas[i].equals(val)) {
            return i;
return -1;
...
booleanin(String needle, String... haystack)
in 
for (String hay : haystack) {
    if (hay.equals(needle))
        return true;
return false;
booleancontainsOnlyAlphaDigitHyphen( final Collection values)
contains Only Alpha Digit Hyphen 
if (values == null) {
    return true;
final int upperAlphabetFirst = 0x41; 
final int upperAlphabetAfterLast = 0x5b; 
final int lowerAlphabetFirst = 0x61; 
final int lowerAlphabetAfterLast = 0x7b; 
final int digitFirst = 0x30; 
...
booleancontainsOnlyWhiteSpaces( final Collection values)
contains Only White Spaces 
if (values == null) {
    return true;
for (final String str : values) {
    if (TextUtils.isEmpty(str)) {
        continue;
    final int length = str.length();
...