Java Utililty Methods String Starts Wtih

List of utility methods to do String Starts Wtih

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Description

The list of methods to do String Starts Wtih are organized into topic(s).

Method

booleanstartsWith(String str, String prefix)
 StringUtilities.startsWith(null, null)      = true StringUtilities.startsWith(null, "abc")     = false StringUtilities.startsWith("abcdef", null)  = false StringUtilities.startsWith("abcdef", "abc") = true StringUtilities.startsWith("ABCDEF", "abc") = false 
return startsWith(str, prefix, false);
booleanStartsWith(String str, String prefix)
Starts With 
if (str == null) {
    throw new NullPointerException("str");
if (prefix == null) {
    throw new NullPointerException("prefix");
return (prefix.length() >= str.length()) && str.substring(0, prefix.length()).equals(prefix);
booleanstartsWith(String str, String prefix, boolean ignoreCase)
starts With 
if (str == null || prefix == null) {
    return (str == null && prefix == null);
if (prefix.length() > str.length()) {
    return false;
return str.regionMatches(ignoreCase, 0, prefix, 0, prefix.length());
booleanstartsWith(String str, String prefix, boolean ignoreCase)

Check if a String starts with a specified prefix (optionally case insensitive).

if (str == null || prefix == null) {
    return (str == null && prefix == null);
return prefix.length() <= str.length() && str.regionMatches(ignoreCase, 0, prefix, 0, prefix.length());
booleanstartsWith(String str, String prefix, int index)
starts With 
if (str == null || prefix == null || index < 0 || index >= str.length())
    throw new IllegalArgumentException();
int endpos = prefix.length() + index;
if (endpos > str.length())
    return false;
return str.substring(index, endpos).equals(prefix);
booleanstartsWith(String str, String start, boolean caseSensitive)
starts With 
if (str == null || start == null) {
    return (str == null && start == null);
if (start.length() > str.length()) {
    return false;
return str.regionMatches(caseSensitive, 0, start, 0, start.length());
booleanstartsWith(String str1Raw, String str2Raw)
starts With 
String str1 = str1Raw.toLowerCase();
String str2 = str2Raw.toLowerCase();
for (int i = 0; i < str1.length() && i < str2.length(); i++) {
    if (str1.charAt(i) != str2.charAt(i)) {
        return false;
return true;
...
booleanstartsWith(String string, char... ca)
starts With 
int l = ca.length;
for (int i = 0; i < l; i++) {
    if (string.charAt(i) != ca[i])
        return false;
return true;
booleanstartsWith(String string, String prefix)
Indicate if the given string starts with the given prefix. 
return string.regionMatches(true, 0, prefix, 0, prefix.length());
booleanstartsWith(String string, StringBuffer prefix, int toffset)
starts With 
return regionMatches(string, toffset, prefix, 0, prefix.length());