Java Utililty Methods Class Name Clean

List of utility methods to do Class Name Clean

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Description

The list of methods to do Class Name Clean are organized into topic(s).

Method

StringclassNameFromQualifiedClassName(String qualifiedName)
Return only class name of a full qualified (package+classname) string. 
if (qualifiedName == null) {
    throw new IllegalArgumentException("qualifiedName can't be null!");
int dot_index = qualifiedName.lastIndexOf('.');
if (dot_index != -1)
    return qualifiedName.substring(dot_index + 1);
else
    return qualifiedName;
...
StringclassNameFromQualifiedName(String qualifiedCalssName)
class Name From Qualified Name 
qualifiedCalssName = qualifiedCalssName.replace('.', ':');
String[] parts = qualifiedCalssName.split(":");
if (parts.length == 0) {
    return "";
return parts[parts.length - 1];
StringclassNameOnly(Object o)
Given an Object instance, returns just the classname with no package 
String s = "[null object ref]";
if (o != null) {
    s = classNameOnly(o.getClass().getName());
return s;
StringclassNameWithoutGeneric(String s)
class Name Without Generic 
return removeGeneric(lastIdentifier(s));
StringclassNameWithoutPackage(Class objectClass)
Returns the name of a class with the package name cut off. 
return classNameWithoutPackage(objectClass.getName());
StringclassNameWithoutPackage(Class objectClass)
class Name Without Package 
return classNameWithoutPackage(objectClass.getName());
StringclassNameWithoutPackage(String classname)
class Name Without Package 
String ret = classname;
final int i = classname.lastIndexOf('.');
if (i != -1) {
    ret = classname.substring(i + 1);
return ret;
StringclassNameWithoutPackageQualifiers(String className)
class Name Without Package Qualifiers 
return className.substring(className.lastIndexOf(".") + 1);