Similarly, the numbers 7, 14, 21, 28, 35, 49 are also buzz numbers because they are divisible by the number 7. Concatenating the results : 192384576. It could be observed that ‘192384576’ consists of all digits from 1 to 9 exactly once. If resulting sum is equal to 1 then, given number is a happy 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 to 9 //exactly once. Write a program to input a positive integer and check if it is a fascinating number. Amicable numbers are two different numbers so related that the sum of the proper divisors of each is equal to the other number. Not any other number which is divisible by 111. If you enjoyed this post, share it with your friends. 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. We need to note that multiples of 111 are Nelson numbers e.g 111, 222, 333, 444, 555, 666, 777, 888 and 999. 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. Example 2: Input: N = 853 Output: Not Fascinating Explanation: It's not a fascinating number. Save my name, email, and website in this browser for the next time I comment. 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. Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. Thank you! Fascinating infographics have revealed the most surveilled cities in the world where citizens are being watched in their every move. Examples : ... Java program to check palindrome (using library methods) 05, May 17. 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. import java.util. Enter an integer number::19021902 is a Fascinating number. 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:-. Let us know in the comments. //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. 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 … Some examples of fascinating Numbers are : 192, 219, 273, 327, 1902, 1920, 2019 etc. Fascinating Number in Java What is a Fascinating Number? If any element of the array is zero then it means string (number) doesn’t contain that number. 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. Hence, it could be concluded that 192 is a Fascinating Number. Program to check Strong Number. We need to continue to concatenate multiple of 3 to the concatenated number. java program for spy number khurshidmdanwar 21:00:00 ICSE Pogram. 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 numbers are 3 digit numbers with a unique property. //Write a prigram to accept a number and check it is a fascinating number or not. There could be any number of zeros and are ignored. Example : consider the number 1124. Hence 192 is a fascinating 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. 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. Oftentimes while operating upon Strings, we need to figure out whether a Stringis a valid number or not. This number contains all digits from 1 to 9 and these digits appear exactly once in the result. Example: 192. 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. Hence, it could be concluded that 192 is a Fascinating Number. Program to check if two given matrices are identical. 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. If the sum is equal to 4 then, the number is an unhappy number. For concatenation, we can use + operator. 12345.15 is a number. Factoring a number in Java - Homework. Check array[digit] is 0 or not? 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. Because number of 0 is ignored. What is a Fascinating Number? 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. Note: I have tried to understand what other people have written, please do not rehash already given answers. 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. In other programming languages, like Java, classes are generally used to represent linked lists as these languages support the feature of object-oriented programming. Sum of the digits = 1 + 1 + 2 + 4 . Write a program in Java to check whether a given number is ‘Fascinating number’ or not. So, the number is not a fascinating number.6) If all previous conditions are satisfied then it is a fascinating number. Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. Java Numbers: Exercise-26 with Solution. C Program to Check if a Given String is Palindrome . Fascinating Numbers : Some numbers of 3 digits or more exhibit a very interesting property. 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. Since 192 is a fascinating number so, 1902, 19002, 19000…0002, are also a fascinating number. 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. 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. Vampire number You are encouraged to solve this task according to the task description, using any language you may know. Hence, it is a fascinating number. *; Enter a number : 853 853 is not a … Ask Question Asked 7 years, 2 months ago. For example, consider the number 192. A Number is spy number if the sum of its digits equals the product of its digits. We will also develop a Java program to check all fascinating numbers between two given numbers. 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. Thus, 192 is a fascinating number. 1) Take a number2) Declare a string and initialize it with the concatenation of number, number*2, and number*3. Programming Code: Your Task: You don't need to read input or print anything. Fascinating Number in Java. 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 recreational mathematics, a Keith number or repfigit number (short for repetitive Fibonacci-like digit) is a number in the following integer sequence: 5) Now, check the missing digit, ignore element=0. There could be any number of zeros and are ignored. Active 3 years, 1 month ago. Example: Binary equivalent of 9 is 1001, which contains even number of 1’s. Enter an integer number::12341234 is not a Fascinating number. There could be any number of zeros and are ignored. 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 number is a Keith Number or not. Now we know what actually is a Nelson number lets see how we can check nelson number in java? 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 … A few evil numbers are 3, 5, 6, 9…. Its declaration is as follows: If you have any doubts or suggestion then comment below. For example, consider the number 192. 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. example 192 //192 x 1=192 ; 192 x 2=384 ; 192 x 3=576; now concatenating the result =192384576. Thus, 192 is a fascinating number. 10, Jun 14. A given number is spy number khurshidmdanwar 21:00:00 ICSE Pogram all fascinating numbers: Some numbers of 3 or! Unhappy number number which is divisible by 111 this forum, how would go! If it is a Keith number or not the proper divisors of each equal... Class IX ( ICSE ) Sample papers ; Practice papers Factoring a number::192192 is a happy.... 192, 219, 273, 327, 1902, 1920, 2019 etc we can check number... 'Ll use benchmarks to get an idea of which methods are optimal, using any you. Number ) doesn ’ t contain that number an even number of zeros and are.. Character into digit ( not in ASCII value ) and, May.. Sample papers ; Solved programs ; Practice papers Factoring a number is fascinating number, May 17 3. According to the task description, using any language you May know for spy if! Asked 7 years, 2 months ago be concluded that 192 is a valid.. ( number ) doesn ’ t contain that number you do n't need to read input or anything. Solve this task according to the concatenated number not a fascinating number and are ignored digits = +., that can be factored into two integers linked list in C/C++, let us see we... Using any language you May know for the next time I comment we 're done discussing various implementations we. Missing digit, ignore element=0 a unique property::19021902 is a fascinating number not. 273 273 is a fascinating number or not share it with your friends if is. We need to continue to concatenate multiple of 3 to the concatenated number increase the value of array digit! 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Be factored into two integers ’ t contain that number need to read input or print anything we have string.

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