Android Utililty Methods String to Int Convert

List of utility methods to do String to Int Convert

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Description

The list of methods to do String to Int Convert are organized into topic(s).

Method

booleanisNumber(String str)
is Number 
if (isLong(str)) {
    return true;
Pattern pattern = Pattern.compile("(-)?(\\d*)\\.{0,1}(\\d*)");
Matcher isNum = pattern.matcher(str);
if (!isNum.matches()) {
    return false;
return true;
booleanisNumber(final String s)
is Number 
if (s == null || s.length() == 0) {
    return false;
int size = s.length();
for (int i = 0; i < size; i++) {
    char chr = s.charAt(i);
    if (chr < '0' || '9' < chr) {
        return false;
...
booleanisNumberString(String input)
is Number String 
if (!isNullOrEmpty(input)) {
    if (input.matches("[0-9]+")) {
        return true;
return false;
booleanisNumberic(String str)
is Numberic 
final Pattern p = Pattern.compile("[0-9]*");
final Matcher m = p.matcher(str);
return m.matches();
inttoInt(Object obj)
to Int 
if (obj == null)
    return 0;
return toInt(obj.toString(), 0);
inttoInt(String obj)
to Int 
try {
    return Integer.parseInt(obj);
} catch (Exception e) {
return 0;
inttoInt(String str, int defValue)
to Int 
try {
    return Integer.parseInt(str);
} catch (Exception e) {
return defValue;
inttoInt(String str, int defValue)
to Int 
try {
    return Integer.parseInt(str);
} catch (Exception e) {
return defValue;
inttoInteger(String value)
to Integer 
try {
    return Integer.parseInt(value);
} catch (Exception e) {
    Debug.warning(e);
return 0;
inttoNumber(String str)
to Number 
str = defaultIfBlank(str, "0");
if (isNumber(str))
    return Integer.valueOf(str);
else
    return 0;