Apache commons lang 2.4

Deprecated and replaced by {@link org.apache.commons.lang.enums} and will be removed in version 3.0.

All classes in this package are deprecated and repackaged to {@link org.apache.commons.lang.enums} since enum is a Java 1.5 keyword.

Provides an implementation of the C style enum in the Java world.

The classic example being an RGB color enumeration.

public final class ColorEnum extends Enum {
    public static final ColorEnum RED = new ColorEnum("Red");
    public static final ColorEnum GREEN = new ColorEnum("Green");
    public static final ColorEnum BLUE = new ColorEnum("Blue");

    private ColorEnum(String color) {
        super(color);
    }

    public static ColorEnum getEnum(String color) {
        return (ColorEnum) getEnum(ColorEnum.class, color);
    }

    public static Map getEnumMap() {
        return getEnumMap(ColorEnum.class);
    }

    public static List getEnumList() {
        return getEnumList(ColorEnum.class);
    }

    public static Iterator iterator() {
        return iterator(ColorEnum.class);
    }
}

Provides an implementation of the C style enum in the Java world.

The classic example being an RGB color enumeration.

public final class ColorEnum extends Enum {
    public static final ColorEnum RED = new ColorEnum("Red");
    public static final ColorEnum GREEN = new ColorEnum("Green");
    public static final ColorEnum BLUE = new ColorEnum("Blue");

    private ColorEnum(String color) {
        super(color);
    }

    public static ColorEnum getEnum(String color) {
        return (ColorEnum) getEnum(ColorEnum.class, color);
    }

    public static Map getEnumMap() {
        return getEnumMap(ColorEnum.class);
    }

    public static List getEnumList() {
        return getEnumList(ColorEnum.class);
    }

    public static Iterator iterator() {
        return iterator(ColorEnum.class);
    }
}

Includes a static utility to create version independent Nested Exception which can handle JDK 1.4 Exceptions as well as others.

Lastly, {@link org.apache.commons.lang.exception.ExceptionUtils} also contains Throwable manipulation and examination routines.

Provides classes for handling and manipulating text, partly as an extension to {@link java.text}. The classes in this package are, for the most part, intended to be instantiated. (ie. they are not utility classes with lots of static methods)

Provides classes and methods to work with dates and durations.

This includes:

• DateUtils - a set of static utility methods for working with dates
• FastDateFormat - a replacement for SimpleDateFormat that is fast and thread-safe
• DateFormatUtils - a formatting class for dates
• StopWatch - a duration timer