Java Currency Class Example

java-thumbnail

The currency class presents a currency method. The currency codes ISO 4217(International Organisation for standardization) is been identified for currency. This class presents all worldwide currencies. There is no public constructor as it is designed for only one currency instance at a time and not more than one. The # is used to begin the […]

Java Date Class Example

java-thumbnail

The class Date is nothing but the representation of the specific instant in Time. It is given in the millisecond precision. For calculation purpose, all the operating system assumes that 1 day= 24*60*60=86400 seconds. However, in Coordinated Universal Time (UTC), there is an extra second called “leap second” about once every year or two year […]

Java Arrays Example

java-thumbnail

An Array is a data structure which represents a group of elements of same data type. It can store a group of elements either it may be variable or objects. We can define the length of the array, when the array is created. We cannot store some integer values and some string values together in […]

Java Stack Class Example

java-thumbnail

Stack is the subclass of Vector which is dynamic in nature and its size goes on increasing as the elements are added to it. Stack class allows creating the pile of the elements where, last element added to the stack is taken out first. This is also referred to as “Last in First Out” (LIFO). […]

Java SimpleTimeZone Class Example

java-thumbnail

SimpleTimeZone is a subclass of TimeZone which is defined as standard time followed within a geographical area for the use with the Gregorian calendar. SimpleTimeZone class extends the Super Class TimeZone. This class takes an offset from GMT, also known as raw offset to set the start and end rules for the Daylight Saving Time. […]

Java TimeZone Class Example

java-thumbnail

TimeZone is an abstract class which defines as standard time followed within a geographical area for the use with the Gregorian calendar. The TimeZone class allows working with TimeZone offset based on Greenwich Mean Time (GMT) which is referred as Coordinated Universal Time. It also sets a daylight saving time. By using getDefault TimeZone, it […]

Java PriorityQueue Class Example

java-thumbnail

In the PriorityQueue, elements are ordered in accordance to their natural ordering or the order defined by the Comparator. Comparator is the factor which compares the elements for the ordering purpose. These are defined at the queue construction time which decides the ordering of elements in the queue, based on the type of constructor used. […]

Java Locale Class Example

java-thumbnail

A locale is a set of parameters which represents specific locale such as geographic region or political region that shares the same language and customs. A locale object may includes user’s language, country, and any special variant preferences that user needs. A Locale class which requires operation to perform its task is called as locale-sensitive […]

Java HashSet Example

java-thumbnail

HashSet is a collection of unique elements (objects). The HashSet is available with collection package and extends AbstractSet and implements the set interface. The below diagram shows the HashSet class hierarchy where HashSet is extended from the AbstractSet where AbstractSet implements the set interface and AbstractCollection which is extend from collection framework where collection framework […]

Java HashTable Example

java-thumbnail

Collection framework is collections of interfaces, implementations and algorithms, which are used to store, retrieve and manipulate the data. In the version of Java 1.0, HashTable was introduced where it did not use map. This version was upgraded in java 1.2, to implement Map interface making it as part of the Java Collections framework. HashTable […]