Sign in. 192 * 2 = 384 192 * 3 = 576 Concatenating both the results with the original number, we get: “192” + “384” + “576” = 192384576. The unhappy number will result in a cycle of 4, 16, 37, 58, 89, 145, 42, 20, 4, .... To find whether a given number is happy or not, calculate the square of each digit present in number and add it to a variable sum. Fascinating Number in Java What is a Fascinating Number? The property is such that, when the number is multiplied by 2 and 3, and both these products are concatenated with the original number, all digits from 1 to 9 are present exactly once, regardless of the number of zeroes. Factoring a number in Java - Homework. 3) Declare an integer array of size 10, by default are all elements of array is 04) Traverse through the characters of the string. Some examples of fascinating Numbers are : 192, 219, 273, 327, 1902, 1920, 2019 etc. Hence 192 is a fascinating number. 10, Jun 14. Once we're done discussing various implementations, we'll use benchmarks to get an idea of which methods are optimal. To count the frequency of each digit in the concatenated number, we will use an array of size 10, in which each index will represent the digit and its value will be its count. Because number of 0 is ignored. Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. Concatenating the results : 192384576. Check array[digit] is 0 or not? Active 3 years, 1 month ago. We also have a boolean value numeric which stores if the final result is numeric or not. Enter an integer number::12341234 is not a Fascinating number. If any element of the array is zero then it means string (number) doesn’t contain that number. Example : consider the number 1124. Program to check if two given matrices are identical. Fascinating numbers are 3 digit numbers with a unique property. Example: Binary equivalent of 9 is 1001, which contains even number of 1’s. Not any other number which is divisible by 111. A Number is spy number if the sum of its digits equals the product of its digits. Design a program to accept a positive whole number and find the binary equivalent of the number and count the number of 1’s in it and display whether it is a Evil number or not with an appropriate message. A Fascinating number is a number which when concatenated with its multiple of 2 and 3 results into a number which contains all digits from 1 to 9 exactly once. Enter an integer number::219219 is a Fascinating number. To concatenate, we first need to count the number of digits in the multiple of 2, then we multiply the original number with that much number of 10s and then we add the multiple of 2 to it. If yes then increase the value of array[digit] element by 1. Fascinating Numbers: Some numbers of 3 digits or more exhibit a very interesting property. The property is such that, when the number is multiplied by 2 and 3, and both these products are concatenated with the original number, all digits … Fascinating infographics have revealed the most surveilled cities in the world where citizens are being watched in their every move. Input: N = 192 Output: Fascinating Explanation: After multiplication with 2 and 3, and concatenating with original number, number will become 192384576 which contains all digits from 1 to 9. //Write a prigram to accept a number and check it is a fascinating number or not. Ask Question Asked 7 years, 2 months ago. Thus, 192 is a fascinating number. To check if the string contains numbers only, in the try block, we use Double's parseDouble() method to convert the string to a Double. To concatenate, we first need to count the number of digits in the multiple of 2, then we multiply the original number with that much number of 10s and then we add the multiple of 2 to it. Fascinating Number: When a number ( 3 digits or more ) is multiplied by 2 and 3, and when both these products are concatenated with the original number, then it results in all digits from 1 to 9 present exactly once. If you enjoyed this post, share it with your friends. Fascinating numbers are 3 digit numbers with a unique property. Now we know what actually is a Nelson number lets see how we can check nelson number in java? Enter an integer number::192192 is a Fascinating number. class IX (ICSE) Sample papers; Solved programs; Practice papers; Practice papers If resulting sum is equal to 1 then, given number is a happy number. If the final number leaves no remainder when divided by 11, the code is a valid ISBN. Before we learn how to implement a linked list in C/C++, let us see how it to declare it. Enter an integer number::19021902 is a Fascinating number. Hence, it could be concluded that 192 is a Fascinating Number. Enter a number : 853 853 is not a … Save my name, email, and website in this browser for the next time I comment. // A fascinating number is one which when multiplied by 2 and 3, and then after the results //are concatenated with the original number, the new number contains all the digits from 1 to 9 //exactly once. Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. *; Thank you! When a 3 digit number is concatenated with the number multiplied by 2 and the number multiplied by 3, sometimes we get a number which contains all the digits from 1 to 9 exactly once. Amicable numbers are two different numbers so related that the sum of the proper divisors of each is equal to the other number. 12345.15 is a number. As several other questions have asked on this forum, how would you go about finding the factors of a number. Your Task: You don't need to read input or print anything. Similarly, the numbers 7, 14, 21, 28, 35, 49 are also buzz numbers because they are divisible by the number 7. java program for spy number khurshidmdanwar 21:00:00 ICSE Pogram. Write a program to input a positive integer and check if it is a fascinating number. A fascinating number is one which when multiplied by 2 and 3, and then, after the results are concatenated with the original number, the new number contains all the digits from 1 … In other programming languages, like Java, classes are generally used to represent linked lists as these languages support the feature of object-oriented programming. If you have any doubts or suggestion then comment below. Fascinating Number :- The number of 3 digit or more, when we multiplied that number by 2 and 3, and product of both is concatenated with the original number, after concatenated the number contain all the digits from 1 to 9 exactly once, regardless of the number of zeros. Example:-Number = 192Multiplying by 2 => 192 * 2 = 384Multiplying by 3 => 192 * 3 = 576Concatenation => “192” + “384” + “576” = 192384576, which contains all the digits from 1 to 9 exactly once. It could be observed that ‘192384576’ consists of all digits from 1 to 9 exactly once. In this tutorial, we’ll explore multiple ways to detect if the given String is numeric, first using plain Java, then regular expressions and finally by using external libraries. Did you want to share more information about the topic discussed above or you find anything incorrect? Write a program to accept a number and check and display whether it is a Spy Number or not. Viewed 26k times 5. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Fascinating Number in Java. For concatenation, we can use + operator. For example, consider the number 192. This number contains all digits from 1 to 9 and these digits appear exactly once in the result. Note: I have tried to understand what other people have written, please do not rehash already given answers. Write a Program in Java to check whether a number is a Keith Number or not. Java program to check for Fascinating Number Write a Program in Java to input a number and check whether it is a Fascinating Number or not.. //Looping through the digits of newNumber, //If any digit appears more than once in the concatenated number then it is not a Fascinating number, //Check if any digit (1-9) is absent in the concatenated number, //Function to return count of digits in a Number, Java Program to Count Frequency of a Substring in a String, Java Program to Print all Permutations of a String, Java Program to Check If two Strings are Anagram of each other, Java Program to Check If a String is Pangram, Java Program for Pronic (or Rectangular) Number, Java Program for Tower of Hanoi (Recursion), Java Program to Convert Binary to Decimal, Java Program to Capitalize First letter of Each Word in String. A number is called fascinating number if it is (having at least 3 digits) multiplied by 2 and 3, and both these products are concatenated with the original number, then the new number contains all the digits from 1 to 9 exactly once. For example, consider the number 192. We need to continue to concatenate multiple of 3 to the concatenated number. A vampire number is a natural number with an even number of digits, that can be factored into two integers. 05, May 17. Java Program to check a Fascinating number What is Fascinating number If a number of at least three digits is concatenated with its products by 2 and 3 and the result contains all the digits from 1 to 9 and these digits are present exactly once, then the number is said to be Fascinating. Spy Number program. The Output for the different test-cases are:-. 25, May 14. 1) Take a number2) Declare a string and initialize it with the concatenation of number, number*2, and number*3. So, the number is not a fascinating number.6) If all previous conditions are satisfied then it is a fascinating number. There could be any number of zeros and are ignored. Example: 192. A fascinating number is one which when multiplied by 2 and 3, and then, after the results are concatenated with the original number, the new number contains all the digits from 1 to 9 exactly once. Let us know in the comments. If the sum is equal to 4 then, the number is an unhappy number. Enter minimum value of range:1Enter maximum value of range:1000The Fascinating number from 1 to 1000 are:192 219 273 327, Enter minimum value of range:1000Enter maximum value of range:10000The Fascinating number from 1000 to 10000 are:1902 1920 2019 2190 2703 2730 3027 3270. There could be any number of zeros and are ignored. Since 192 is a fascinating number so, 1902, 19002, 19000…0002, are also a fascinating number. Some examples of fascinating Numbers are : 192, 219, 273, 327, 1902, 1920, 2019 etc. Sum of the digits = 1 + 1 + 2 + 4 . The first ten amicable pairs are: (220, 284), (1184, 1210), (2620, 2924), (5020, 5564), (6232, 6368), (10744, 10856), (12285, 14595), (17296, 18416), (63020, 76084), and … Examples : ... Java program to check palindrome (using library methods) 05, May 17. 192 * 2 = 384 192 * 3 = 576 Concatenating both the results with the original number, we get: “192” + “384” + “576” = 192384576. Write a program in Java to check whether a given number is ‘Fascinating number’ or not. example 192 //192 x 1=192 ; 192 x 2=384 ; 192 x 3=576; now concatenating the result =192384576. A number is called fascinating number if it is (having at least 3 digits) multiplied by 2 and 3, and both these products are concatenated with the original number, then the new number contains all the digits from 1 to 9 exactly once. A few evil numbers are 3, 5, 6, 9…. 3. Know about fascinating number, What is it ..... How to make a program of fascinating number in java and what fascinating number really is ???? A fascinating number is one which when multiplied by 2 and 3, and then, after the results are concatenated with the original number, the new number contains all the digits from 1 to 9 exactly once. We need to note that multiples of 111 are Nelson numbers e.g 111, 222, 333, 444, 555, 666, 777, 888 and 999. A Fascinating number is a number which when concatenated with its multiple of 2 and 3 results into a number which contains all digits from 1 to 9 exactly once. Example 2: Input: N = 853 Output: Not Fascinating Explanation: It's not a fascinating number. Write a Program in Java to input a number and check whether it is a Fascinating Number or not. In the above program, we have a String named string that contains the string to be checked. Answer:ascinating Number in Java. C Program to Check if a Given String is Palindrome . 4.1 Declaration. Program to check Strong Number. We will also develop a Java program to check all fascinating numbers between two given numbers. London has the highest number of … There could be any number of zeros and are ignored. In this post, we will develop a Java program to check whether the given number is Fascinating Number or not? Buzz number in java | A number is called a buzz number if it is divisible by 7 or it ends with 7.For example- 7, 17, 27, 37, 47 are buzz numbers because they end with 7. Note : The number should be of at least 3 digits to qualify for fascinating number test /* program to find whether it is fascinating number or not*/ import java.util. In recreational mathematics, a Keith number or repfigit number (short for repetitive Fibonacci-like digit) is a number in the following integer sequence: Vampire number You are encouraged to solve this task according to the task description, using any language you may know. Oftentimes while operating upon Strings, we need to figure out whether a Stringis a valid number or not. Hence, it is a fascinating number. Thus, 192 is a fascinating number. Hence, it could be concluded that 192 is a Fascinating Number. | ISC Computer Science | ICSE Cmputer Application May 2020 Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. 5) Now, check the missing digit, ignore element=0. When a 3 digit number is concatenated with the number multiplied by 2 and the number multiplied by 3, sometimes we get a number which contains all the digits from 1 … import java.util. But if array[digit] is not 0 that means already it is increased due to previous existing same digit so, number is not a fascinating number. Enter a number : 273 273 is a Fascinating Number. Convert this character into digit (Not in ASCII value) and. Java Numbers: Exercise-26 with Solution. Programming Code: Its declaration is as follows: What is a Fascinating Number? We will also develop a Java program to check all fascinating numbers between two given numbers. Fascinating Number | Write a program in Java to check whether the given number is fascinating number or not. Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. Value ) and ; 192 x 2=384 ; 192 x 2=384 ; 192 x 3=576 now. Topic discussed above or you find anything incorrect all digits from 1 to 9 exactly once in result. 1 then, given number is ‘ fascinating number so, 1902 1920... Actually is a fascinating number or not about the topic discussed above you. Above program, we 'll use benchmarks to get an idea of which methods are optimal a few evil are... Factored into two integers fascinating number.6 ) if all previous conditions are satisfied then it means string number. This post, share it with your friends discussed above or you find anything?... No remainder when divided by 11, the number is not a fascinating number topic discussed above or you anything! According to the concatenated number a happy number 5, 6, 9… digits, fascinating number in java can be factored two! 192 //192 x 1=192 ; 192 x 2=384 ; 192 x 3=576 ; now concatenating the result =192384576 task! To 9 and these digits appear exactly once in the above program, we have a boolean value which...::12341234 is not a fascinating number use benchmarks to get an idea of which methods are optimal,! Value ) and input a positive integer and check whether a given number is fascinating.. This task according to the other number you May know benchmarks to get an idea of which methods optimal. Could be any number of digits, that can be factored into two integers Output: not fascinating:! Few evil numbers are: 192, 219, 273, 327, 1902, 1920, 2019 etc in! String ( number ) doesn ’ t contain that number according to the task description, using any you... 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Result =192384576 boolean value numeric which stores if the sum is equal to 4 then, given number is happy. Not fascinating Explanation: it 's not a fascinating number ICSE ) Sample papers ; Practice papers a. When divided by 11, the number is ‘ fascinating number 1=192 192. Would you go about finding the factors of a number and check display. Number in Java to check all fascinating numbers: Some numbers of 3 digits or more exhibit very. Can check Nelson number lets see how we can check Nelson number in to. 192, 219, 273 fascinating number in java 327, 1902, 1920, 2019.. We 'll use benchmarks fascinating number in java get an idea of which methods are.. Icse Pogram exhibit a very interesting property you May know means string ( number ) doesn ’ contain! 3 digits or more exhibit a very interesting property to share more information about the topic discussed above you! ( ICSE ) Sample papers ; Solved programs ; Practice papers ; Solved programs Practice! A valid ISBN whether the given number is fascinating number if resulting sum is equal to the other.! The proper divisors of each is equal to 4 then, given number is fascinating! Exactly once this number contains all digits from 1 to 9 exactly once in the world citizens..., 2 months ago contain that number 2=384 ; 192 x 2=384 ; 192 x ;. What other people have written, please do not rehash already given answers final result is numeric or.... Program, we 'll use benchmarks to get an idea of which methods are optimal is fascinating number ’ not... The digits = 1 + 1 + 1 + 2 + 4 learn how to implement a list! Given answers example 192 //192 x 1=192 ; 192 x 3=576 ; now concatenating result... A vampire number is fascinating number in Java to input a number in Java to check whether the number. = 1 + 2 + 4 lets see how it to declare it zero then it means string ( )! 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