Degrees to radian java

Java program to convert degrees to radians

Write a Java program to convert degrees to radians and vice versa. We can convert degrees to radians by multiplying with the conversion factor:

Mathematical Formulas

Radians = Degrees *

Degrees = Radians*

Java Program to convert degrees to radians

import java.util.Scanner; /* * Java Demo program to convert degrees to radians * and vice versa. */ public class DegreesToRadiansDemo < //Main method public static void main(String[] args) < int menuChoice=1; Scanner keyboard=new Scanner(System.in); while(menuChoice!=3) < System.out.println("Program Menu"); System.out.println(". "); System.out.println("1.Convert Degrees to Radians"); System.out.println("2.Convert Radians to Degrees"); System.out.println("3.Quit the Program."); System.out.println(". "); System.out.print("Enter the menu choice :="); menuChoice = keyboard.nextInt(); if(menuChoice < 1 || menuChoice >3) < System.out.println("Invalid Choice Please Try again"); continue; >if(menuChoice==1) < System.out.print("Enter Degrees to convert:="); double degrees=keyboard.nextDouble(); double radians=degrees*Math.PI/180; System.out.println("Degrees " + degrees + " = Radians " + radians); >if(menuChoice==2) < System.out.print("Enter Radians to convert:="); double radians=keyboard.nextDouble(); double degrees=radians*180/Math.PI; System.out.println("Radians " + radians + " = Degrees " + degrees); >if(menuChoice==3) < System.out.println("Program Exit ->Goodbye!"); > > > >

Sample Output

Program Menu
…………………………….
1.Convert Degrees to Radians
2.Convert Radians to Degrees
3.Quit the Program.
…………………………….
Enter the menu choice :=1
Enter Degrees to convert:=180
Degrees 180.0 = Radians 3.141592653589793
Program Menu
…………………………….
1.Convert Degrees to Radians
2.Convert Radians to Degrees
3.Quit the Program.
…………………………….
Enter the menu choice :=2
Enter Radians to convert:=1.57
Radians 1.57 = Degrees 89.95437383553926
Program Menu
…………………………….
1.Convert Degrees to Radians
2.Convert Radians to Degrees
3.Quit the Program.
…………………………….
Enter the menu choice :=4
Invalid Choice Please Try again
Program Menu
…………………………….
1.Convert Degrees to Radians
2.Convert Radians to Degrees
3.Quit the Program.
…………………………….
Enter the menu choice :=3
Program Exit -> Goodbye!

Screenshot

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Источник

13.26. Java – Метод Math.toRadians()

Метод Math.toRadians() – преобразует угол, измеряемый в градусах, в примерно эквивалентный угол, измеряемый в радианах, простыми словами – преобразует градусы в радианы.

Синтаксис

Параметры

Подробная информация о параметрах:

Возвращаемое значение

Пример

Получим следующий результат:

90,0 градусов = 1,571 радиану 45,0 градусов = 0,785 радиану 57,295780 градусов = 1,00000 радиану 

Формула преобразования градусов в радианы:

Оглавление

• 1. Java – Самоучитель для начинающих
• 2. Java – Обзор языка
• 3. Java – Установка и настройка
• 4. Java – Синтаксис
• 5. Java – Классы и объекты
• 6. Java – Конструкторы
• 7. Java – Типы данных и литералы
• 8. Java – Типы переменных
• 9. Java – Модификаторы
• 10. Java – Операторы
• 11. Java – Циклы и операторы цикла
• 11.1. Java – Цикл while
• 11.2. Java – Цикл for
• 11.3. Java – Улучшенный цикл for
• 11.4. Java – Цикл do..while
• 11.5. Java – Оператор break
• 11.6. Java – Оператор continue
• 12. Java – Операторы принятия решений
• 12.1. Java – Оператор if
• 12.2. Java – Оператор if..else
• 12.3. Java – Вложенный оператор if
• 12.4. Java – Оператор switch..case
• 12.5. Java – Условный оператор (? 🙂
• 13. Java – Числа
• 13.1. Java – Методы byteValue(), shortValue(), intValue(), longValue(), floatValue(), doubleValue()
• 13.2. Java – Метод compareTo()
• 13.3. Java – Метод equals()
• 13.4. Java – Метод valueOf()
• 13.5. Java – Метод toString()
• 13.6. Java – Метод parseInt()
• 13.7. Java – Метод Math.abs()
• 13.8. Java – Метод Math.ceil()
• 13.9. Java – Метод Math.floor()
• 13.10. Java – Метод Math.rint()
• 13.11. Java – Метод Math.round()
• 13.12. Java – Метод Math.min()
• 13.13. Java – Метод Math.max()
• 13.14. Java – Метод Math.exp()
• 13.15. Java – Метод Math.log()
• 13.16. Java – Метод Math.pow()
• 13.17. Java – Метод Math.sqrt()
• 13.18. Java – Метод Math.sin()
• 13.19. Java – Метод Math.cos()
• 13.20. Java – Метод Math.tan()
• 13.21. Java – Метод Math.asin()
• 13.22. Java – Метод Math.acos()
• 13.23. Java – Метод Math.atan()
• 13.24. Java – Метод Math.atan2()
• 13.25. Java – Метод Math.toDegrees()
• 13.26. Java – Метод Math.toRadians()
• 13.27. Java – Метод Math.random()
• 14. Java – Символы
• 14.1. Java – Метод Character.isLetter()
• 14.2. Java – Метод Character.isDigit()
• 14.3. Java – Метод Character.isWhitespace()
• 14.4. Java – Метод Character.isUpperCase()
• 14.5. Java – Метод Character.isLowerCase()
• 14.6. Java – Метод Character.toUpperCase()
• 14.7. Java – Метод Character.toLowerCase()
• 14.8. Java – Метод Character.toString()
• 15. Java – Строки
• 15.1. Java – Метод charAt()
• 15.2. Java – Метод compareTo()
• 15.3. Java – Метод compareToIgnoreCase()
• 15.4. Java – Метод concat()
• 15.5. Java – Метод contentEquals()
• 15.6. Java – Метод copyValueOf()
• 15.7. Java – Метод endsWith()
• 15.8. Java – Метод equals()
• 15.9. Java – Метод equalsIgnoreCase()
• 15.10. Java – Метод getBytes()
• 15.11. Java – Метод getChars()
• 15.12. Java – Метод hashCode()
• 15.13. Java – Метод indexOf()
• 15.14. Java – Метод intern()
• 15.15. Java – Метод lastIndexOf()
• 15.16. Java – Метод length()
• 15.17. Java – Метод matches()
• 15.18. Java – Метод regionMatches()
• 15.19. Java – Метод replace()
• 15.20. Java – Метод replaceAll()
• 15.21. Java – Метод replaceFirst()
• 15.22. Java – Метод split()
• 15.23. Java – Метод startsWith()
• 15.24. Java – Метод subSequence()
• 15.25. Java – Метод substring()
• 15.26. Java – Метод toCharArray()
• 15.27. Java – Метод toLowerCase()
• 15.28. Java – Метод toString()
• 15.29. Java – Метод toUpperCase()
• 15.30. Java – Метод trim()
• 15.31. Java – Метод valueOf()
• 15.32. Java – Классы StringBuilder и StringBuffer
• 15.32.1. Java – Метод append()
• 15.32.2. Java – Метод reverse()
• 15.32.3. Java – Метод delete()
• 15.32.4. Java – Метод insert()
• 15.32.5. Java – Метод replace()
• 16. Java – Массивы
• 17. Java – Дата и время
• 18. Java – Регулярные выражения
• 19. Java – Методы
• 20. Java – Потоки ввода/вывода, файлы и каталоги
• 20.1. Java – Класс ByteArrayInputStream
• 20.2. Java – Класс DataInputStream
• 20.3. Java – Класс ByteArrayOutputStream
• 20.4. Java – Класс DataOutputStream
• 20.5. Java – Класс File
• 20.6. Java – Класс FileReader
• 20.7. Java – Класс FileWriter
• 21. Java – Исключения
• 21.1. Java – Встроенные исключения
• 22. Java – Вложенные и внутренние классы
• 23. Java – Наследование
• 24. Java – Переопределение
• 25. Java – Полиморфизм
• 26. Java – Абстракция
• 27. Java – Инкапсуляция
• 28. Java – Интерфейсы
• 29. Java – Пакеты
• 30. Java – Структуры данных
• 30.1. Java – Интерфейс Enumeration
• 30.2. Java – Класс BitSet
• 30.3. Java – Класс Vector
• 30.4. Java – Класс Stack
• 30.5. Java – Класс Dictionary
• 30.6. Java – Класс Hashtable
• 30.7. Java – Класс Properties
• 31. Java – Коллекции
• 31.1. Java – Интерфейс Collection
• 31.2. Java – Интерфейс List
• 31.3. Java – Интерфейс Set
• 31.4. Java – Интерфейс SortedSet
• 31.5. Java – Интерфейс Map
• 31.6. Java – Интерфейс Map.Entry
• 31.7. Java – Интерфейс SortedMap
• 31.8. Java – Класс LinkedList
• 31.9. Java – Класс ArrayList
• 31.10. Java – Класс HashSet
• 31.11. Java – Класс LinkedHashSet
• 31.12. Java – Класс TreeSet
• 31.13. Java – Класс HashMap
• 31.14. Java – Класс TreeMap
• 31.15. Java – Класс WeakHashMap
• 31.16. Java – Класс LinkedHashMap
• 31.17. Java – Класс IdentityHashMap
• 31.18. Java – Алгоритмы Collection
• 31.19. Java – Iterator и ListIterator
• 31.20. Java – Comparator
• 32. Java – Дженерики
• 33. Java – Сериализация
• 34. Java – Сеть
• 34.1. Java – Обработка URL
• 35. Java – Отправка Email
• 36. Java – Многопоточность
• 36.1. Java – Синхронизация потоков
• 36.2. Java – Межпоточная связь
• 36.3. Java – Взаимная блокировка потоков
• 36.4. Java – Управление потоками
• 37. Java – Основы работы с апплетами
• 38. Java – Javadoc

Источник

How do you write a program to convert degrees to radians from a list in java

So the program needs to do the following: Replace the elements of a list of angles specified in degrees to convert them to their radians equivalent, and the size of the list remains unchanged. Solution 2: Use the static function as below: Solution 3: Try using Link in stack: convert from radians to degrees in Java

How do you write a program to convert degrees to radians from a list in java

So the program needs to do the following:

Replace the elements of a list of angles specified in degrees to convert them to their radians equivalent, and the size of the list remains unchanged.

This is what I have and tried so far:

public static void toRadians(List t) < for(int i = 0; i < t.size(); i++) < Math.toRadians(t.get(i)); >> 

I’m pretty much stuck as it does not work for some reason.

public static void toRadians(List t) < for(int i = 0; i < t.size(); i++) < t.set(i, Math.toRadians(t.get(i))); >> 

As you use List#get(int index) to get a value of element with index i . You have to use a setter method, which is List#set(int index, E element) , to assign the value to element with index i .

You can use replaceAll to transform elements in a list:

public static void toRadians(List degrees)

Or if you don’t want to change the original list, you can use map , to create a new list with elements transformed:

public static List toRadians(List degrees)

You can complete the task with this explanation for using a ListIterator :

public static List convertToRadians(List t) < for (final ListIteratoriterator = t.listIterator(); iterator.hasNext(); ) < final Double element = iterator.next(); iterator.set(Math.toRadians(element)); >return t; > 

A succinct way to do this using Java 8+ (but with slightly different mechanics) would be:

public static List convertToRadians(List t)

For your exercise, you will no doubt want to look at the time complexity for each way to complete this task and mutability, and in particular the time complexity to just adding and removing each element in the list.

Program to Convert Radian to Degree, Examples: Input : radian = 20 Output : degree = 1145.4545454545455 Explanation: degree = 20 * (180/pi) Input : radian = 5 Output : degree = 286.3636363636364 Explanation : degree = 20 * (180/pi) Recommended: Please try your approach on first, before moving on to the solution. Note: In …

Java Tutorial — 18 — Converting between Degrees and

Get more lessons like this at http://www.MathTutorDVD.comLearn how to use the math functions in the java library to perform calculations and write complex co

JAVA Simple degrees to radians conversion

Java toRadians() method with Example

The java.lang.Math.ToRadians() is used to convert an angle measured in degrees to an approximately equivalent angle measured in radians.
Note : The conversion from degrees to radian is generally inexact.

public static double toRadians(double deg) Parameter: deg : This parameter is an angle in degrees which we want to convert in radians. Return : This method returns the measurement of the angle deg in radians.

Example : To show working of java.lang.Math.toRadians() method.

Java

3.141592653589793 1.5707963267948966 0.7853981633974483

Java — Using Math.cos() to find cosine of angle in, I want to give the result the Math.cos() method in java in degrees.I have tried methods like converting from radians to degrees. But I discovered that any number I pass into the Math.cos() method is being treated as radians,irrespective of whether I convert.Please I can I make it give me the result …

Convert from Radians to Degrees in Java

I’m trying to get the alpha angle in degrees from x,y when user creates an object.

I wrote the following constructor:

1. Am I right that _alpha is now an angle in degrees instead of radians that I got from the atan() method ?
2. Is there a simple way to do so ?

Why not use the built-in method Math.toDegrees() , it comes with the Java SE.

The idea looks ok, but I would suggest using Math.atan2 instead of Math.atan .

This should be by far the shortest and simplest way:

 _radius = Math.hypot(x, y); _alpha = Math.toDegrees(Math.atan2(y, x)); 

Keep in mind that when computed this way, _alpha will have values between -180 and 180 degrees.

Java — Degrees minutes seconds to radians formula not, 60 minutes = 1 degree 60 seconds = 1 minute. we get that the total number of degrees represented by d m s is. deg = d + m/60 + s/60^2. Now it is a matter of converting deg degrees to radians. But. 360 degrees = 2*Pi radians. So, 1 degrees = (2*Pi/360) radians. and.

Convert radiant to degrees

Is there a method JAVA to convert a radiant in degrees (° ‘ »)? For example radiant = — 272,7’ degrees: 4° 33’ S. Anybody can help me?

Note that it is radians not radiants.

A full circle is 360 degrees, or 2 Pi radians.
So a radian is 360/2Pi degrees. So, you could do (radians * 2 * Math.PI) / (2 * 180) i.e. (radians * Math.PI) / (180)

Or use Math.toDegrees(radians) which involves less magic numbers and spells out what you are doing.

Just for clarity, if you have a number in degrees and want to go the other way, converting this to radians, note you have
A full circle is 360 degrees, or 2 pi radians.
So a degree is 2pi/360 radians. So, you could do (radians * 2 * 180) / (2 * Math.PI) i.e. (radians * 180) / (Math.PI)

Or use Math.toRadians(degrees) which involves less magic numbers and spells out what you are doing.

Use the Math.toDegrees() static function as below:

double deg = Math.toDegrees(2.0); // Returns 114.59155902616465 deg = Math.toDegrees(Math.PI); // Returns 180.0 

Java, How to calculate degree from tan, The function you’re looking for is double atan (double tangent) which, given the tangent, will return the angle in radians. From there, you can simply multiply it by 180 / PI to get degrees or, better yet, use the inbuilt double toDegrees (double radians). In other words, something like (assuming you’ve bought in …

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