All Resources

Showing the most recent resources. The latest one is from 2020-09-25.
  • Java.util package provides a IdentityHashMap class which implements the Map interface with a hash table, using reference-equality in place of object-equality when comparing keys (and values). In other words, in an IdentityHashMap, two keys k1 and k2 are considered equal if and only if (k1==k2). (In normal Map implementations (like HashMap) two keys k1 and k2 are considered equal if and only if (k1==null ? k2==null : k1.equals(k2)).)
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 2 days ago
  • Spring is a great java framework but you can also learn some best practices by following Spring principles like template pattern, coding for interfaces and favoring unchecked exception.
    Article  Added by javabuddy // medium.com // 6 days ago
  • In general, the Java 8 streams are lazy. The intermediate operations will not be executed till a terminal operation is invoked. But Java 8 streams flatMap is not lazy.
    Article  Added by javadevcentral // javadevcentral.com // 7 days ago
  • Java.util package provides a TreeSet class which is a NavigableSet implementation based on a TreeMap. The elements are ordered using their natural ordering, or by a Comparator provided at set creation time, depending on which constructor is used. The class guarantees that the Map will be in ascending key order and backed by a TreeMap.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 9 days ago
  • Deciphering the top Java web frameworks that you should count on.
    Article  Added by konstant // www.konstantinfo.com // 11 days ago
  • Java.util package provides a EnumSet class which is a specialized Set implementation for use with enum types. All of the elements in an enum set must come from a single enum type that is specified, explicitly or implicitly, when the set is created. Enum sets are represented internally as bit vectors. This representation is extremely compact and efficient. Null elements are not permitted. Attempts to insert a null element will throw NullPointerException.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 13 days ago
  • Hello guys, If you are preparing for Programming Job interviews and looking for some of the best books for programming questions, then you can check out these books https://medium.com/javarevisited/5-coding-interview-books-to-prepare-for-programming-job-interviews-d8f63348afaf
    Article  Added by javabuddy // medium.com // 14 days ago
  • Java.util package provides a Calendar class which represents a specific instant in time, with millisecond precision.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 16 days ago
  • Free courses to learn Full stack Java development using JSP, Servlet, Spring, Hibernate, Angular, and Reactjs
    Article  Added by javabuddy // medium.com // 17 days ago
  • Java.util package provides a GregorianCalendar class which is a concrete subclass of Calendar and provides the standard calendar system used by most of the world.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 19 days ago
  • Java.util package provides a Random class. An instance of this class is used to generate a stream of pseudorandom numbers. The class uses a 48-bit seed, which is modified using a linear congruential formula. The algorithms implemented by class Random use a protected utility method that on each invocation can supply up to 32 pseudorandomly generated bits.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 21 days ago
  • These are the best courses to learn Java Programming in 2020. the list contains the best Java courses from Udemy, Coursera, Pluralsight, and other online websites.
    Article  Added by javabuddy // medium.com // 23 days ago
  • Advanced Spring Boot Courses for experienced Java developers to learn Spring Boot testing, Cloud and container deploying, developing full-stack Spring Boot application using Angular and React.
    Article  Added by javabuddy // medium.com // 24 days ago
  • Monitoring in Spring Boot is quite easy in common use cases, thanks to Spring Boot Actuator. It automatically adds health checks for every external component of your microservice, e.g. a database connection. However, there is no compact way in Actuator to disable the health check for a single database. This tutorial explains how it can be achieved nevertheless.
    Tutorial  Added by v3rtumnus // www.michael-altenburger.at // 26 days ago
  • Java.util package provides a Date class which represents a specific instant in time, with millisecond precision.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 26 days ago
  • Java.util package provides a UUID class which represents an immutable universally unique identifier (UUID). A UUID represents a 128-bit value. It is used for for creating random file names, session id in web application, transaction id etc. There are four different basic types of UUIDs: time-based, DCE security, name-based, and randomly generated UUIDs.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // 27 days ago
  • Java.util package provides a Dictionary class which is the abstract parent of any class, such as Hashtable, which maps keys to values. Every key and every value is an object. In any one Dictionary object, every key is associated with at most one value. Given a Dictionary and a key, the associated element can be looked up. Any non-null object can be used as a key and as a value.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 1 month ago
  • I'm going to refactor code based on Java 7 to Java 8 using the functional components, specifically Collector. The plan is simple, learn it by coding it.
    Article  Added by surajcm // dzone.com // about 1 month ago
  • A Hashtable models and implements the Map interface. This implementation provides all of the optional map operations, and permits null values and the null key. A HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls. This class makes no guarantees as to the order of the map. It does not guarantee that the order will remain constant over time.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • A Hashtable models and implements the Map interface. This implementation provides all of the optional map operations, and permits null values and the null key. A HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls. This class makes no guarantees as to the order of the map. It does not guarantee that the order will remain constant over time.
    Tutorial  Added by AlphaCodingSkills // localhost // about 2 months ago
  • Java.util package provides a EnumMap class which is a specialized Map implementation for use with enum type keys. All of the keys in an enum map must come from a single enum type that is specified, explicitly or implicitly, when the map is created.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • best books for Java developer to learn Spring, Microservice, and modern Java
    Article  Added by javabuddy // medium.com // about 2 months ago
  • Java.util package provides a Hashtable class which implements hash table and maps keys to value. Any non-null object can be used as a key or as a value. To successfully store and retrieve objects from a hashtable, the objects used as keys must implement the hashCode method and the equals method.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • A HashSet class implements the Set interface, backed by the a Hashtable interface (actually a HashMap instance). This class makes no guarantees as to the iteration order of the set. It does not guarantee that the order will remain constant over time. The class permits the null element.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • Java.util package provides a Scanner class. A simple text scanner parse primitive types and strings using regular expressions. A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace. The resulting tokens may then be converted into values of different types using the various next methods.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • Java.util package provides a vector class which models and implements vector data structure. A vector is a sequence container implementing array that can change in size. Unlike array, the size of a vector changes automatically when elements are appended or deleted. It is similar to ArrayList, but with two differences:

    Vector is synchronized.
    Vector contains many legacy methods that are not part of the collections framework.
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • Java.util package provides an ArrayList class which provides resizable-array implementation of the list interface. It implements all optional list operations and permits all elements including null. Along with this, the class provides methods to manipulate the size of the array that is used internally to store the list. This class is almost equivalent to Vector class except the implementation is not synchronized.
    Article  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • Java Utility Library - ArrayDeque Tutorial
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • Java Utility Library - LinkedList Tutorial
    Tutorial  Added by AlphaCodingSkills // www.alphacodingskills.com // about 2 months ago
  • A different approach with GraphQL, that can quickly integrate into your REST service to solve a common problem without the need to define any schema.
    Article  Added by rey5137 // rey5137.com // 3 months ago