Java Utililty Methods Double Number Create

List of utility methods to do Double Number Create

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Description

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

Method

DoubletoDouble(Object o)
to Double 
Double result = null;
if (o instanceof Double) {
    result = (Double) o;
} else if (o instanceof String) {
    result = Double.parseDouble((String) o);
} else if (o instanceof Integer) {
    result = new Double((Integer) o);
return result;
DoubletoDouble(Object o)
to Double 
if (o == null) {
    return null;
return Double.valueOf(String.valueOf(o));
doubletoDouble(Object o)
to Double 
if (o instanceof Integer)
    return new Double(((Integer) o).intValue());
if (o instanceof Double)
    return ((Double) o);
if (o instanceof String) {
    try {
        return new Double(Double.parseDouble((String) o));
    } catch (NumberFormatException ex) {
...
DoubletoDouble(Object o)
Attempts to cast an arbitrary object to a Double. 
if (o instanceof Double) {
    return (Double) o;
} else {
    return Double.valueOf(o.toString());
DoubletoDouble(Object o)
to Double 
if (o == null)
    return null;
if (o.getClass() == Double.class)
    return (Double) o;
if (o.getClass() == Boolean.class)
    return booleanToDouble((Boolean) o);
if (o.getClass() == Byte.class)
    return (double) ((Byte) o).byteValue();
...
DoubletoDouble(Object ob, Double defaultDouble)
to Double 
if (ob == null) {
    return defaultDouble;
if (ob instanceof Integer) {
    return ((Integer) ob).doubleValue();
} else if (ob instanceof Float) {
    return ((Float) ob).doubleValue();
} else if (ob instanceof Double) {
...
doubletoDouble(Object obj)
Get the double value of this object, only if the object is an instance of Number 
return (obj instanceof Number) ? ((Number) obj).doubleValue() : 0.0d;
doubletoDouble(Object obj)
This method convert object to Double. 
double value = 0;
if (obj != null) {
    value = ((Double) obj).doubleValue();
return value;
doubletoDouble(Object obj)
to Double 
if (obj instanceof Integer) {
    return ((Integer) obj).doubleValue();
if (obj instanceof Double) {
    return ((Double) obj).doubleValue();
if (obj instanceof Long) {
    return ((Long) obj).doubleValue();
...
doubletoDouble(Object obj)
to Double 
String str = obj != null ? obj.toString().trim() : "";
return "".equals(str) ? 0.00 : Double.parseDouble(str);