Along with other Java collections, there is a Linked List. You will want to use a parameterized constructor to work easier with Java Linked List. As a linked list, it has container elements which will store the data and allow you to navigate through it. We saw many of the methods used for a Linked…
The Stack class is found in java.util and it extends the Vector Class. This means it can grow and shrink as needed, which is helpful for a Stack. As it extends a Vector, it is helpful to Parameterize the constructor. Just like the Stack that we’ve created, it has the same methods: push(), pop(), and…
The Vector, in Java, effectively implements a dynamic array like in other languages. This is because Java’s array is static in size, like the one’s found in C/C++. The vector can use an index to identify a specific element, however, it can grow and shrink based upon the size needs of the vector. Since early…
Most modern languages support many of the data types we’ve looked at so far this term, including Stacks, Queues, Hash Maps/Dictionaries, and more. Many of these are supported within the language itself, often through a utility package, or something similar which can be imported, or from a third party library that can be imported. Which…
In order to understand network programming in Java, you need to understand couple of concepts first. The first of which, is what form of network connection are you going to be making. Typically, many modern apps use a client server model, and you make a request from a URL Process where a client uses a…
If you need to create a Thread in Java, and cannot extend the Thread class, often because you are extending another class, you can always implement Runnable. Notice, that just like where you extend the Thread class, you have to override the abstract method run. However, in this example, you need to create a Thread…
One of the two ways to use a thread in Java is to extend the Thread object. It can be done like the following. Of course this is only good if you are not extending another Class. You must override the run method, and you will need to call start() to start the thread and…
Threads, in general, allow a program to behave more efficiently by passing off parts of a process so that multiple items can be done simultaneously. With the advent and growth of multi-core processors which allow for many natural threads, this has been increased. Why do we need threads? Well simply put, there is always something…
