Java Utililty Methods Null Value Convert

List of utility methods to do Null Value Convert

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Description

The list of methods to do Null Value Convert are organized into topic(s).

Method

Stringnull2Length0(String s)
null Length 
return s == null ? "" : s;
Stringnull2NA(String str)
null NA 
return null != str ? str : "NA";
StringNull2Space(String str)
Null Space 
if (str == null)
    return "";
else if (str.equals("null") || str.equals("NULL"))
    return "";
else
    return str;
Stringnull2Str(Object obj)
null Str 
if ((obj == null) || (obj.equals("null")) || (obj.equals(""))) {
    return "";
} else {
    return obj.toString().trim();
Stringnull2Str(String str)
null Str 
return null2Str(str, "");
Stringnull2String(Object obj)
Converts null to empty string, otherwise returns it directly. 
return obj == null ? "" : obj.toString();
Stringnull2String(String str)
null String 
String str2 = new String();
if (str == null) {
    str2 = "";
} else {
    str2 = str;
return str2;
Stringnull2String(String string)
null String 
return string == null ? "" : string;
Stringnull2void(String str)
nullvoid 
if (isNull(str)) {
    str = "";
return str;