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. 12345.15 is a number. 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. 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. Concatenating the results : 192384576. Some examples of fascinating Numbers are : 192, 219, 273, 327, 1902, 1920, 2019 etc. 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. A Number is spy number if the sum of its digits equals the product of its digits. 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. Example : consider the number 1124. If you enjoyed this post, share it with your friends. 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.. Programming Code: 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 … *; class IX (ICSE) Sample papers; Solved programs; Practice papers; Practice papers In other programming languages, like Java, classes are generally used to represent linked lists as these languages support the feature of object-oriented programming. Hence, it is a fascinating number. We need to note that multiples of 111 are Nelson numbers e.g 111, 222, 333, 444, 555, 666, 777, 888 and 999. Hence 192 is a fascinating number. 05, May 17. Factoring a number in Java - Homework. We need to continue to concatenate multiple of 3 to the concatenated number. 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. Convert this character into digit (Not in ASCII value) and. Some examples of fascinating Numbers are : 192, 219, 273, 327, 1902, 1920, 2019 etc. Example: Binary equivalent of 9 is 1001, which contains even number of 1’s. Active 3 years, 1 month ago. 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 … Not any other number which is divisible by 111. Example 2: Input: N = 853 Output: Not Fascinating Explanation: It's not 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. Sign in. Thus, 192 is a fascinating number. In the above program, we have a String named string that contains the string to be checked. Did you want to share more information about the topic discussed above or you find anything incorrect? It could be observed that ‘192384576’ consists of all digits from 1 to 9 exactly once. For example, consider the number 192. Fascinating numbers are 3 digit numbers with a unique property. There could be any number of zeros and are ignored. A few evil numbers are 3, 5, 6, 9…. 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. Examples : ... Java program to check palindrome (using library methods) 05, May 17. We will also develop a Java program to check all fascinating numbers between two given numbers. Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. 25, May 14. So, the number is not a fascinating number.6) If all previous conditions are satisfied then it is a fascinating number. 10, Jun 14. Write a program to accept a number and check and display whether it is a Spy Number or not. The Output for the different test-cases are:-. 4.1 Declaration. Enter an integer number::19021902 is a Fascinating number. Fascinating numbers are 3 digit numbers with a unique property. 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. //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. import java.util. 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 infographics have revealed the most surveilled cities in the world where citizens are being watched in their every move. If the final number leaves no remainder when divided by 11, the code is a valid ISBN. Answer:ascinating Number in Java. Write a program to input a positive integer and check if it is a fascinating number. Thank you! | ISC Computer Science | ICSE Cmputer Application May 2020 Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. 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. Program to check if two given matrices are identical. Ask Question Asked 7 years, 2 months ago. 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. Viewed 26k times 5. Sum of the digits = 1 + 1 + 2 + 4 . Save my name, email, and website in this browser for the next time I comment. In this post, we will develop a Java program to check whether the given number is Fascinating Number or not? Let us know in the comments. 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. Now we know what actually is a Nelson number lets see how we can check nelson number in java? Write a Program in Java to check whether a number is a Keith Number or not. 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 to 9 exactly once. Vampire number You are encouraged to solve this task according to the task description, using any language you may know. 3) Declare an integer array of size 10, by default are all elements of array is 04) Traverse through the characters of the string. Similarly, the numbers 7, 14, 21, 28, 35, 49 are also buzz numbers because they are divisible by the number 7. There could be any number of zeros and are ignored. Note: I have tried to understand what other people have written, please do not rehash already given answers. java program for spy number khurshidmdanwar 21:00:00 ICSE Pogram. Enter an integer number::192192 is a Fascinating number. Your Task: You don't need to read input or print anything. 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. Its declaration is as follows: example 192 //192 x 1=192 ; 192 x 2=384 ; 192 x 3=576; now concatenating the result =192384576. For example, consider the number 192. 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. 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. Spy Number program. Enter an integer number::12341234 is not a Fascinating number. As several other questions have asked on this forum, how would you go about finding the factors of a number. 1) Take a number2) Declare a string and initialize it with the concatenation of number, number*2, and number*3. Program to check Strong Number. 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. 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 … Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. Example: 192. 192 * 2 = 384 192 * 3 = 576 Concatenating both the results with the original number, we get: “192” + “384” + “576” = 192384576. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Enter an integer number::219219 is a Fascinating number. We will also develop a Java program to check all fascinating numbers between two given numbers. If any element of the array is zero then it means string (number) doesn’t contain that number. Hence, it could be concluded that 192 is a Fascinating Number. A vampire number is a natural number with an even number of digits, that can be factored into two integers. Once we're done discussing various implementations, we'll use benchmarks to get an idea of which methods are optimal. Fascinating Numbers: Some numbers of 3 digits or more exhibit a very interesting property. What is a Fascinating Number? If the sum is equal to 4 then, the number is an unhappy number. 192 * 2 = 384 192 * 3 = 576 Concatenating both the results with the original number, we get: “192” + “384” + “576” = 192384576. Hence, it could be concluded that 192 is a Fascinating Number. For concatenation, we can use + operator. 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. Fascinating Number | Write a program in Java to check whether the given number is fascinating number or not. London has the highest number of … We also have a boolean value numeric which stores if the final result is numeric or not. // 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. Enter a number : 273 273 is a Fascinating Number. Check array[digit] is 0 or not? Since 192 is a fascinating number so, 1902, 19002, 19000…0002, are also a fascinating number. Because number of 0 is ignored. Enter a number : 853 853 is not a … 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. There could be any number of zeros and are ignored. This number contains all digits from 1 to 9 and these digits appear exactly once in the result. Write a Program in Java to input a number and check whether it is a Fascinating Number or not. Oftentimes while operating upon Strings, we need to figure out whether a Stringis a valid number or not. In recreational mathematics, a Keith number or repfigit number (short for repetitive Fibonacci-like digit) is a number in the following integer sequence: 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. Fascinating Number in Java What is a Fascinating Number? Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. 3. 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. 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. If you have any doubts or suggestion then comment below. Anything incorrect and are ignored is zero then it means string ( ). Java to check whether a number we also have a string named that... Other number which is divisible by 111 factored into two integers want to share information. Programs ; Practice papers Factoring a number is a Keith number or not now, check missing. 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