Java Utililty Methods Integer Create

List of utility methods to do Integer Create

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Description

The list of methods to do Integer Create are organized into topic(s).

Method

inttoInteger(long n)
to Integer 
if (n < Integer.MIN_VALUE || Integer.MAX_VALUE < n) {
    throw new IllegalArgumentException("value out of range: " + n);
return (int) n;
IntegertoInteger(Number n)
Converts a Number to an Integer. 
if (n == null) {
    return null;
return n.intValue();
IntegertoInteger(Number n)
Converts a Number into an Integer if not already such 
if (n == null) {
    return null;
} else if (n instanceof Integer) {
    return (Integer) n;
} else {
    return n.intValue();
inttoInteger(Number number)
to overcome Exception occur when Integer, Double or other Number object is null when try to do mathematics operation (+-/*) 
return (int) toDouble(number);
inttoInteger(Object _inStrObj)
to Integer 
if (_inStrObj == null || _inStrObj.toString().trim().equals("")) {
    return 0;
} else {
    return new Integer(_inStrObj.toString()).intValue();
inttoInteger(Object _value, int _default)
Converts a string to an integer, and if unable to do so, returns the default value 
if (_value == null)
    return _default;
else if (_value instanceof Integer)
    return (Integer) _value;
else if (_value instanceof Long)
    return ((Long) _value).intValue();
else if (_value instanceof Double)
    return ((Double) _value).intValue();
...
IntegertoInteger(Object anObj)
Converts given value to Integer. 
if (anObj == null)
    return null;
Integer tmpResult = null;
if (anObj instanceof Integer) {
    tmpResult = (Integer) anObj;
} else if (anObj instanceof Number) {
    tmpResult = new Integer(((Number) anObj).intValue());
} else {
...
IntegertoInteger(Object cell)
to Integer 
if (cell instanceof Long) {
    return ((Long) cell).intValue();
} else if (cell instanceof Integer) {
    return (Integer) cell;
} else if (cell instanceof String) {
    return Integer.parseInt((String) cell);
} else {
    return null;
...
IntegertoInteger(Object o)
to Integer 
if (o == null) {
    return null;
return Integer.valueOf(String.valueOf(o));
IntegertoInteger(Object o)
to Integer 
Integer i;
if (o instanceof Integer) {
    i = (Integer) o;
} else {
    try {
        i = Integer.valueOf(o.toString());
    } catch (Exception e) {
        i = null;
...