Multithreading and Concurrency Thread synchronization

In Java, thread synchronization is used to coordinate the access of multiple threads to shared resources. Thread synchronization ensures that only one thread can access a shared resource at a time, which prevents conflicts and race conditions. Here are some basics of thread synchronization in Java: 1. The `synchronized` keyword: You can use the `synchronized` … Read more

Multithreading and Concurrency Threads and Runnable interface

In Java, multithreading and concurrency are used to execute multiple threads of execution concurrently. A thread is a lightweight process that runs independently of other threads in a program. Here are some basics of threads and the `Runnable` interface in Java: 1. Creating a thread: To create a thread, you can create a class that … Read more

Java Collections Java 8 Stream API

In Java 8, the `Stream` API was introduced as part of the Java Collections Framework to provide a powerful way of working with collections of data. The `Stream` API allows you to process data in a declarative way using functional-style operations. Here are some basics of the `Stream` API in Java: 1. Creating a `Stream`: … Read more

Java Collections Comparable and Comparator interfaces

In Java, the `Comparable` and `Comparator` interfaces are used to define the ordering of objects in collections. Both interfaces are part of the Java Collections Framework and provide a way to sort collections of objects based on their natural ordering or a custom ordering. Here are some basics of the `Comparable` and `Comparator` interfaces in … Read more

Java Collections Iterator

In Java, an `Iterator` is an interface that provides a way to iterate over elements in a collection. It is part of the Java Collections Framework and allows you to traverse a collection of elements in a consistent and efficient way. Here are some basics of the `Iterator` in Java: 1. Obtaining an `Iterator`: To … Read more

Java Collections Stack

In Java, a `Stack` is a collection that represents a stack data structure. It is part of the Java Collections Framework and provides a way of storing and manipulating elements in a last-in, first-out (LIFO) order. Here are some basics of the `Stack` in Java: 1. Creating a `Stack`: To create a `Stack`, you can … Read more

Java Collections Queue

In Java, a `Queue` is a collection that represents a queue data structure. It is part of the Java Collections Framework and provides a way of storing and manipulating elements in a first-in, first-out (FIFO) order. Here are some basics of the `Queue` in Java: 1. Creating a `Queue`: To create a `Queue`, you can … Read more

Java Collections TreeMap

In Java, a `TreeMap` is a collection that stores key-value pairs in a sorted order based on the keys. It is part of the Java Collections Framework and provides a fast and efficient way of storing and retrieving data using keys in a sorted manner. Here are some basics of the `TreeMap` in Java: 1. … Read more

Java Collections HashMap

In Java, a `HashMap` is a collection that stores key-value pairs. It is part of the Java Collections Framework and provides a fast and efficient way of storing and retrieving data using keys. Here are some basics of the `HashMap` in Java: 1. Creating a `HashMap`: To create a `HashMap`, you can use the `HashMap` … Read more

Java Collections TreeSet

In Java, a `TreeSet` is a collection that stores elements in a sorted order. It is part of the Java Collections Framework and provides a fast and efficient way of storing and retrieving data in a sorted manner. Here are some basics of the `TreeSet` in Java: 1. Creating a `TreeSet`: To create a `TreeSet`, … Read more