{"id":12383,"date":"2022-11-29T20:47:16","date_gmt":"2022-11-29T17:47:16","guid":{"rendered":"https:\/\/starlanguageblog.com\/?p=12383"},"modified":"2022-11-29T20:47:16","modified_gmt":"2022-11-29T17:47:16","slug":"what-is-thread-safe-in-java","status":"publish","type":"post","link":"https:\/\/www.starlanguageblog.com\/what-is-thread-safe-in-java\/","title":{"rendered":"What is Thread Safe in Java?"},"content":{"rendered":"
Java refers to code as being thread-safe or thread-safe when it can be used or shared in a concurrent or multithreading context and will behave as intended.<\/span><\/p>\n Whether you’re just starting with Java or using it for a while, you may have wondered what makes Java thread-safe. The answer is not just a straightforward answer but a combination of different factors.<\/span><\/p>\n Stack is a class in Java that stores data in a last-in, first-out manner. There are five methods for performing operations with the stack: list iterator, addElement, remove an element, peek, and pop. It also supports an IsEmpty property.<\/span><\/p>\n The ListIterator method returns a list iterator over elements in the sequence. It also throws an IndexOutOfBoundsException when an index out of range occurs. If you are doing a comparison and swapping operations, consider using optimistic locking.<\/span><\/p>\n The Java Stack class also supports the Peek method, which looks for the stack’s top element and reports the object’s position. However, the peek method is not used for removing the top element from the stack.<\/span><\/p>\n The addElement method works the same as the addElement method in the Vector class. It passes the object to be pushed into the stack. Next, the Object obj parameter is passed to the search method, which returns the position of the element obj from the top of the stack. If the element is not found, the Object obj is returned as a -1.<\/span><\/p>\n The Peek method works the same as the Peek method in the Vector class. It returns the top element of the stack, but the Object obj parameter is not passed to the search method. If the element is not found, the Peek method throws an EmptyStackException.<\/span><\/p>\n <\/p>\n The Java Stack class also supports an IsEmpty method. It returns true if the stack is empty and false otherwise. It also provides a walk method that opens a sequential stream of StackFrames for the current thread. The walk method closes the StackFrames when it returns.<\/span><\/p>\n Using a Vector class in Java is like using an ArrayList. The Vector class implements the List interface and uses the Enumeration interface to traverse the elements in the vector.<\/span><\/p>\n The Vector class combines the resizable array and synchronization features. The capacity of the vector increases as the number of elements increases. This is a synchronized way of minimizing memory usage. It will increase the capacity in chunks of the size specified in the capacity increment argument. This way, the Vector class ensures that the number of elements is at least as large as the vector size.<\/span><\/p>\n Vectors have four types of constructors. The default constructor creates a Vector with a capacity of 10. The last overloaded constructor takes a predefined collection as an argument and creates a Vector with the predefined collection.<\/span><\/p>\n The Vector class has a boolean addAll method that adds a collection of elements to the vector. It also has a boolean removeAll method that deletes all elements from the vector. The Vector class also has an elemental remove method<\/a> that removes an element from the vector. Finally, it also has a remote range method that removes a range of elements from the vector.<\/span><\/p>\n The Vector class also has an Object hashCode method that returns the hash code of the vector. It also has a String toString method that returns the string representation of each element. The Vector class also has a boolean equals method that compares an object to a vector. It also has a boolean that contains a method that tests if a specific object is a vector component. It also has an int lastIndexOf method that returns the index of the last occurrence of the element in the vector. Finally, it also has a void ensure capacity method that increases the vector’s capacity.<\/span><\/p>\nStack class<\/span><\/h2>\n
Vector class<\/span><\/h2>\n
Hashtable class<\/span><\/h2>\n