Programming Articles - Page 617 of 3366

This tutorial will discuss how to write a swift program to find the area of a Circle.In a circle, an area is known as the space that is enclosed inside the boundaries of the circle in the two-dimensional plane. Suppose we have a round tea table now the area of the circle helps us to find how much cloth we required to cover the top of the table. We can calculate the area of the circle with the help of the radius or diameter, here, We are going to use the formula of area of the circle −Area of the ... Read More

This tutorial will discuss how to write a swift program to swap two numbers without using temporary variable. Swapping of two variables means mutually exchanging the values of two variables.Swapping two numbers without using temporary variablesGiven two variables Number1 and Number2 now we swap their values without using any temporary variable. Here we use tuple to preform the swapping operation.AlgorithmThe algorithm is explained below −Step 1 − Declare two integer variables − Number1, and Number2Step 2 − Assign values to Number1 and Number2Step 3 − Use tuple syntax to swap −(Number1, Number2) = (Number2, Number1)Step 4 − Display the value ... Read More

This tutorial will discuss how to write a swift program to add two numbers.Adding two numbers in Swift language is simple and can be performed with the help of the addition arithmetic operator(+). The arithmetic addition operator (+) uses two numbers as operands and returns their sum as output.In this operator, both the operands should be of the same data types, For example swift allows adding a float into float without an issue but if we will try to add different types of data types using (+) operator then the compiler will raise an error, For example adding an Int ... Read More

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