Java Utililty Methods String Array Combine

List of utility methods to do String Array Combine

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Description

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

Method

String[]combine(final String[] left, final String[] right)
combine 
final String[] rv = new String[left.length + right.length];
for (int pos = 0; pos < left.length; ++pos)
    rv[pos] = left[pos];
for (int pos = 0; pos < right.length; ++pos)
    rv[left.length + pos] = right[pos];
return rv;
Stringcombine(String sep, String... s)
combine 
String ret = "";
if (s.length > 0) {
    ret = s[0];
for (int i = 1; i < s.length; i++) {
    ret += sep + s[i];
return ret;
...
Stringcombine(String style1, String style2)
Combines multiple styles 
return style1 + "," + style2;
Stringcombine(String... s)
"a", "b", "c" -> "a b c a-b a-b-c" "a", "b", null -> "a b a-b" 
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.length; i++) {
    if (s[i] != null) {
        sb.append(s[i]);
        if (i < s.length - 1 && s[i + 1] != null) {
            sb.append(' ');
for (int j = 1; j < s.length; j++) {
    if (s[j] != null) {
        sb.append(' ');
        for (int i = 0; i <= j; i++) {
            sb.append(s[i]);
            if (i < j && s[i + 1] != null) {
                sb.append('-');
return sb.toString();
Stringcombine(String... vals)
combine 
StringBuilder buf = new StringBuilder();
for (String val : vals) {
    if (buf.length() > 0)
        buf.append(", ");
    buf.append(val);
return buf.toString();
String[]combine(String[] a, String[] b, String glue)
Combined string elements from two arrays into a single array, gluing together elements of the same index with a delimiter string. 
String[] result = new String[Math.min(a.length, b.length)];
for (int i = 0; i < result.length; ++i) {
    result[i] = a[i] + glue + b[i];
return result;
String[]combine(String[] array1, String[] array2)
Combine to string arrays. 
if (array1 == null || array1.length == 0)
    return array2;
else if (array2 == null || array2.length == 0)
    return array1;
String[] result = new String[array1.length + array2.length];
System.arraycopy(array1, 0, result, 0, array1.length);
System.arraycopy(array2, 0, result, array1.length, array2.length);
return result;
...
Stringcombine(String[] strs, String delimeter)
combine 
StringBuilder sb = new StringBuilder(strs.length * (20 + delimeter.length()));
for (String str : strs) {
    sb.append(str);
    sb.append(delimeter);
return sb.toString();
Stringcombine(String[] values, String delimiter)
Combines the strings values in the string array into one single string, delimited by the specified delimiter. 
if (values == null) {
    throw new NullPointerException("values array is null");
if (values.length == 0) {
    return "";
StringBuffer result = new StringBuffer();
for (int i = 1; i < values.length; i++) {
...
Stringcombine(String[] values, String regex)
combine 
if (values == null) {
    return null;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < values.length; i++) {
    if (values[i] == null) {
        continue;
    sb.append(values[i]);
    if (i < values.length - 1) {
        sb.append(regex);
return sb.toString();