Programming Articles - Page 617 of 3363

This tutorial will discuss how to write a swift program toprint a string. A string is a collection of characters such as “TutorialsPoint”, “Hello Purnima! How are you?”, etc. Strings can also be represented by Unicode. We can easily create and modifies a strings because they are lightweight and readable, also we can do string interpolation. Strings can be used to insert variable, constants expressions, etc.SyntaxFollowing is the syntax for creating string type variableVar a : StringAlgorithm to print two stringsStep 1 − Define 2 VariablesStep 2 − Enter string into that variableStep 3 − Perform operations with that stringStep ... Read More

This tutorial will discuss how to write a Swift program to find the perimeter of the circle.Perimeter of the circle is also known as the circumference of the circle. It is used to calculate the boundary of the circle. Suppose we want to fence our circular garden so with the help of perimeter we can calculate the total amount of fence required to cover the boundary of the garden. We can calculate the perimeter of the circle with the help of the radius or diameter, here, Radius − It is known as the distance from the center to a point ... Read More

This tutorial will discuss how to write a swift program to find the area of square.A Square is a two-dimensional closed figure with four equal side and four equal angle. It can also have two diagonals of equal length. The area of the square is known as the space that is enclosed inside the boundaries of the square. Suppose we have a square study table now the area of the square helps us to find how much cloth we required to cover the top of the table. The area of the square is the product of its two side.FormulaFollowing is ... Read More

In Java, a List is an interface which stores a sequence of elements of similar types. Since the list contains multiple elements, we might need to know how many element the list currently have. To count the total number of elements present in a list, the List interface provides a method named size(). The List size() Method The size() method of List interface is used to retrieve size of the current List. The size refers to total number of items currently the list holds. For example, a list have {1, 2, 3}, then the size of the list will be ... Read More

In Java, a List is an interface that stores elements of the same type. You can retrieve a sub-list from a List in Java. A sub-list is the view of a portion (or part) of the List. For example, if the given list is {a, b, c, d, e}, then the possible sub-lists can be {a, b}, {a, b, c}, {b, c, d}, {d, e}, etc. The List interface in Java provides a built-in method named subList(), which returns a sub-list from the given List. We just need to specify the range of extraction. Sublist from a List using the ... Read More

In Java, List is an interface that stores a sequence of elements of similar types. Like an array, elements in the list are stored at a specific index starting at 0. Since we can access elements in the list through their index, and we can pass this index value to the remove() method (i.e., a basic method for removing elements), which will remove the element at the specified index. We can remove an element from the List in Java: Using remove() Method of List Interface Using remove(object) Method ... Read More

In Java if you try to print a List (or any) object directly using the print statement a hash-code of the object will be printed (default behaviour). If you want to print each element of your object (such as List, Array, etc.) or perform any operation on them one by one, you need to iterate through it. Java provides various ways to iterate through objects. Following are different approaches to iterate through a List object: Using For Loop Using While Loop Using Iterator Object Iterate over ... Read More

In Java, a List is an interface that stores a sequence of elements of similar type. Java provides various ways to iterate over a list, such as using a for loop, forEach loop, iterator object, stream, or forEach() method with a lambda expression. What is Stream in Java? In Java, a Stream is an interface, which represents a sequence of elements (or objects) supporting sequential and parallel aggregate operations. These operations can be used to produce the desired result. The Stream interface provides a method named stream(), which is used to create a sequential stream from the current collection (or ... Read More

The List interface extends the Collection interface. It is a collection that stores a sequence of elements. ArrayList is the most popular implementation of the List interface. The user of a list has quite precise control over where an element to be inserted in the List. These elements are accessible by their index and are searchable.List interface provides an iterator() method which returns an Iterator to iterate the list of elements. The following code snippet shows the use of iterator.Iterator iterator = list.iterator(); while(iterator.hasNext()) {    System.out.print(iterator.next() + " "); }There is another but more flexible and powerful iterator available ... Read More

A List is an ordered collection or an interface that contains elements of similar types. Since the list is a collection object, we can iterate (or loop) a list using different control flow statements or an Iterator object. This article will discuss one way to (i.e., using forEach loop) iterate over a list: Iterate over a List Using forEach Loop A forEach loop is a control flow statement that helps to iterate (or loop through) over a collections object. As the List is an ordered collection, it can be easily iterated using a forEach loop or any other control flow ... Read More